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Finding the Fourth Proportional to 610,869.48, 843,495.17 and 381,693.75

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Solution

The fourth proportional to 610,869.48, 843,495.17 and 381,693.75 is: 527,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,869.48 : 843,495.17 = 381,693.75 : x
  2. Step 2: Convert to fraction form
    610,869.48/843,495.17 = 381,693.75/x
  3. Step 3: Cross multiply
    610,869.48x = 843,495.17 × 381,693.75
  4. Step 4: Simplify right side
    610,869.48x = 321,956,832,635.72
  5. Step 5: Solve for x
    x = 321,956,832,635.72/610,869.48
  6. Step 6: Final answer
    x = 527,046.85

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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.