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Finding the Fourth Proportional to 532,163.38, 734,996.42 and 387,613.22

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Solution

The fourth proportional to 532,163.38, 734,996.42 and 387,613.22 is: 535,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,163.38 : 734,996.42 = 387,613.22 : x
  2. Step 2: Convert to fraction form
    532,163.38/734,996.42 = 387,613.22/x
  3. Step 3: Cross multiply
    532,163.38x = 734,996.42 × 387,613.22
  4. Step 4: Simplify right side
    532,163.38x = 284,894,329,044.67
  5. Step 5: Solve for x
    x = 284,894,329,044.67/532,163.38
  6. Step 6: Final answer
    x = 535,351.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.