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Finding the Fourth Proportional to 574,892.71, 861,685.13 and 349,756.85

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Solution

The fourth proportional to 574,892.71, 861,685.13 and 349,756.85 is: 524,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,892.71 : 861,685.13 = 349,756.85 : x
  2. Step 2: Convert to fraction form
    574,892.71/861,685.13 = 349,756.85/x
  3. Step 3: Cross multiply
    574,892.71x = 861,685.13 × 349,756.85
  4. Step 4: Simplify right side
    574,892.71x = 301,380,279,789.25
  5. Step 5: Solve for x
    x = 301,380,279,789.25/574,892.71
  6. Step 6: Final answer
    x = 524,237.44

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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.