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Finding the Fourth Proportional to 691,294.33, 954,042.96 and 381,257.54

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Solution

The fourth proportional to 691,294.33, 954,042.96 and 381,257.54 is: 526,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,294.33 : 954,042.96 = 381,257.54 : x
  2. Step 2: Convert to fraction form
    691,294.33/954,042.96 = 381,257.54/x
  3. Step 3: Cross multiply
    691,294.33x = 954,042.96 × 381,257.54
  4. Step 4: Simplify right side
    691,294.33x = 363,736,074,369.03
  5. Step 5: Solve for x
    x = 363,736,074,369.03/691,294.33
  6. Step 6: Final answer
    x = 526,166.73

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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.