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Finding the Fourth Proportional to 532,336.80, 799,136.96 and 420,097.44

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Solution

The fourth proportional to 532,336.80, 799,136.96 and 420,097.44 is: 630,644.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,336.80 : 799,136.96 = 420,097.44 : x
  2. Step 2: Convert to fraction form
    532,336.80/799,136.96 = 420,097.44/x
  3. Step 3: Cross multiply
    532,336.80x = 799,136.96 × 420,097.44
  4. Step 4: Simplify right side
    532,336.80x = 335,715,391,105.38
  5. Step 5: Solve for x
    x = 335,715,391,105.38/532,336.80
  6. Step 6: Final answer
    x = 630,644.72

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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.