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Finding the Fourth Proportional to 418,470.98, 627,706.53 and 193,708.53

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Solution

The fourth proportional to 418,470.98, 627,706.53 and 193,708.53 is: 290,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,470.98 : 627,706.53 = 193,708.53 : x
  2. Step 2: Convert to fraction form
    418,470.98/627,706.53 = 193,708.53/x
  3. Step 3: Cross multiply
    418,470.98x = 627,706.53 × 193,708.53
  4. Step 4: Simplify right side
    418,470.98x = 121,592,109,197.70
  5. Step 5: Solve for x
    x = 121,592,109,197.70/418,470.98
  6. Step 6: Final answer
    x = 290,562.83

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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.