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Finding the Fourth Proportional to 625,141.12, 936,156.48 and 437,272.96

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Solution

The fourth proportional to 625,141.12, 936,156.48 and 437,272.96 is: 654,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,141.12 : 936,156.48 = 437,272.96 : x
  2. Step 2: Convert to fraction form
    625,141.12/936,156.48 = 437,272.96/x
  3. Step 3: Cross multiply
    625,141.12x = 936,156.48 × 437,272.96
  4. Step 4: Simplify right side
    625,141.12x = 409,355,915,032.78
  5. Step 5: Solve for x
    x = 409,355,915,032.78/625,141.12
  6. Step 6: Final answer
    x = 654,821.61

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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.