638 US customary cups in US dry barrels

Conversion formula
How to convert 638 US customary cups to US dry barrels?

We know (by definition) that: $1\mathrm{uscup}\approx 0.00204613095238095\mathrm{drybarrel}$

We can set up a proportion to solve for the number of US dry barrels.

Now, we cross multiply to solve for our unknown $x$:

Conclusion: 638 ⁢ uscup ≈ 1.3054315476190461 ⁢ drybarrel

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US dry barrel is equal to 0.766030208036478 times 638 US customary cups.

It can also be expressed as: 638 US customary cups is equal to $\frac{1}{\mathrm{0.766030208036478}}$ US dry barrels.

Approximation

An approximate numerical result would be: six hundred and thirty-eight US customary cups is about one point three one US dry barrels, or alternatively, a US dry barrel is about zero point seven seven times six hundred and thirty-eight US customary cups.