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Finding the Fourth Proportional to 532,164.87, 734,998.50 and 387,614.70

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Solution

The fourth proportional to 532,164.87, 734,998.50 and 387,614.70 is: 535,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,164.87 : 734,998.50 = 387,614.70 : x
  2. Step 2: Convert to fraction form
    532,164.87/734,998.50 = 387,614.70/x
  3. Step 3: Cross multiply
    532,164.87x = 734,998.50 × 387,614.70
  4. Step 4: Simplify right side
    532,164.87x = 284,896,223,077.95
  5. Step 5: Solve for x
    x = 284,896,223,077.95/532,164.87
  6. Step 6: Final answer
    x = 535,353.31

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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.