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Finding the Fourth Proportional to 391,572.70, 586,046.85 and 391,572.70

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Solution

The fourth proportional to 391,572.70, 586,046.85 and 391,572.70 is: 586,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,572.70 : 586,046.85 = 391,572.70 : x
  2. Step 2: Convert to fraction form
    391,572.70/586,046.85 = 391,572.70/x
  3. Step 3: Cross multiply
    391,572.70x = 586,046.85 × 391,572.70
  4. Step 4: Simplify right side
    391,572.70x = 229,479,947,381.00
  5. Step 5: Solve for x
    x = 229,479,947,381.00/391,572.70
  6. Step 6: Final answer
    x = 586,046.85

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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.