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Finding the Fourth Proportional to 625,687.53, 862,990.17 and 410,749.17

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Solution

The fourth proportional to 625,687.53, 862,990.17 and 410,749.17 is: 566,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,687.53 : 862,990.17 = 410,749.17 : x
  2. Step 2: Convert to fraction form
    625,687.53/862,990.17 = 410,749.17/x
  3. Step 3: Cross multiply
    625,687.53x = 862,990.17 × 410,749.17
  4. Step 4: Simplify right side
    625,687.53x = 354,472,496,045.66
  5. Step 5: Solve for x
    x = 354,472,496,045.66/625,687.53
  6. Step 6: Final answer
    x = 566,532.78

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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.