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Finding the Fourth Proportional to 492,640.50, 739,237.41 and 268,016.61

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Solution

The fourth proportional to 492,640.50, 739,237.41 and 268,016.61 is: 402,175.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,640.50 : 739,237.41 = 268,016.61 : x
  2. Step 2: Convert to fraction form
    492,640.50/739,237.41 = 268,016.61/x
  3. Step 3: Cross multiply
    492,640.50x = 739,237.41 × 268,016.61
  4. Step 4: Simplify right side
    492,640.50x = 198,127,904,613.38
  5. Step 5: Solve for x
    x = 198,127,904,613.38/492,640.50
  6. Step 6: Final answer
    x = 402,175.43

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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.