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Finding the Fourth Proportional to 418,625.92, 627,146.54 and 247,335.38

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Solution

The fourth proportional to 418,625.92, 627,146.54 and 247,335.38 is: 370,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,625.92 : 627,146.54 = 247,335.38 : x
  2. Step 2: Convert to fraction form
    418,625.92/627,146.54 = 247,335.38/x
  3. Step 3: Cross multiply
    418,625.92x = 627,146.54 × 247,335.38
  4. Step 4: Simplify right side
    418,625.92x = 155,115,527,786.59
  5. Step 5: Solve for x
    x = 155,115,527,786.59/418,625.92
  6. Step 6: Final answer
    x = 370,534.93

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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.