Finding the Fourth Proportional to 646,854,400.80, 970,281,601.20 and 302,480,632.80
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Solution
The fourth proportional to 646,854,400.80, 970,281,601.20 and 302,480,632.80 is: 453,720,949.20
Step by Step Solution
- Step 1: Write the proportion equation
646,854,400.80 : 970,281,601.20 = 302,480,632.80 : x - Step 2: Convert to fraction form
646,854,400.80/970,281,601.20 = 302,480,632.80/x - Step 3: Cross multiply
646,854,400.80x = 970,281,601.20 × 302,480,632.80 - Step 4: Simplify right side
646,854,400.80x = 293,491,392,725,173,248 - Step 5: Solve for x
x = 293,491,392,725,173,248/646,854,400.80 - Step 6: Final answer
x = 453,720,949.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.