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Finding the Fourth Proportional to 492,078.90, 738,118.35 and 482,747.70

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Solution

The fourth proportional to 492,078.90, 738,118.35 and 482,747.70 is: 724,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,078.90 : 738,118.35 = 482,747.70 : x
  2. Step 2: Convert to fraction form
    492,078.90/738,118.35 = 482,747.70/x
  3. Step 3: Cross multiply
    492,078.90x = 738,118.35 × 482,747.70
  4. Step 4: Simplify right side
    492,078.90x = 356,324,935,790.30
  5. Step 5: Solve for x
    x = 356,324,935,790.30/492,078.90
  6. Step 6: Final answer
    x = 724,121.55

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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.