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Finding the Fourth Proportional to 627,086.24, 940,624.16 and 372,681.92

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Solution

The fourth proportional to 627,086.24, 940,624.16 and 372,681.92 is: 559,019.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,086.24 : 940,624.16 = 372,681.92 : x
  2. Step 2: Convert to fraction form
    627,086.24/940,624.16 = 372,681.92/x
  3. Step 3: Cross multiply
    627,086.24x = 940,624.16 × 372,681.92
  4. Step 4: Simplify right side
    627,086.24x = 350,553,611,380.66
  5. Step 5: Solve for x
    x = 350,553,611,380.66/627,086.24
  6. Step 6: Final answer
    x = 559,019.78

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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.