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Finding the Fourth Proportional to 616,614.53, 922,679.78 and 508,997.73

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Solution

The fourth proportional to 616,614.53, 922,679.78 and 508,997.73 is: 761,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,614.53 : 922,679.78 = 508,997.73 : x
  2. Step 2: Convert to fraction form
    616,614.53/922,679.78 = 508,997.73/x
  3. Step 3: Cross multiply
    616,614.53x = 922,679.78 × 508,997.73
  4. Step 4: Simplify right side
    616,614.53x = 469,641,910,991.91
  5. Step 5: Solve for x
    x = 469,641,910,991.91/616,614.53
  6. Step 6: Final answer
    x = 761,645.88

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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.