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Finding the Fourth Proportional to 492,691.95, 738,974.39 and 155,766.83

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Solution

The fourth proportional to 492,691.95, 738,974.39 and 155,766.83 is: 233,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,691.95 : 738,974.39 = 155,766.83 : x
  2. Step 2: Convert to fraction form
    492,691.95/738,974.39 = 155,766.83/x
  3. Step 3: Cross multiply
    492,691.95x = 738,974.39 × 155,766.83
  4. Step 4: Simplify right side
    492,691.95x = 115,107,693,707.78
  5. Step 5: Solve for x
    x = 115,107,693,707.78/492,691.95
  6. Step 6: Final answer
    x = 233,630.15

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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.