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Finding the Fourth Proportional to 626,991.32, 865,606.68 and 412,754.17

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Solution

The fourth proportional to 626,991.32, 865,606.68 and 412,754.17 is: 569,836.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,991.32 : 865,606.68 = 412,754.17 : x
  2. Step 2: Convert to fraction form
    626,991.32/865,606.68 = 412,754.17/x
  3. Step 3: Cross multiply
    626,991.32x = 865,606.68 × 412,754.17
  4. Step 4: Simplify right side
    626,991.32x = 357,282,766,749.86
  5. Step 5: Solve for x
    x = 357,282,766,749.86/626,991.32
  6. Step 6: Final answer
    x = 569,836.86

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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.