Hello Ezyiah,
You can use proportions for this problem.
inches 2 x
¯¯¯¯¯ : ¯¯¯¯¯ = ¯¯¯¯¯¯¯
miles 50 175
Cross-multiply the last 2 fractions and you get: 2*175 = 50*x -----> 350 = 50*x
Divide by 50 and you get x, which will be the answer to the problem. I'll leave that step up to you, you got this!
Cheers.