Question

solve for d in the proportion.
$\frac{d}{3}=\frac{300}{450}$
$d = square$

Explanation:

Step1: Cross - multiply

$d\times450 = 3\times300$

Step2: Simplify the right - hand side

$450d=900$

Step3: Solve for d

$d=\frac{900}{450}$
$d = 2$

Answer:

2