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Finding the Fourth Proportional to 418,248.83, 627,020.56 and 181,413.20

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Solution

The fourth proportional to 418,248.83, 627,020.56 and 181,413.20 is: 271,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,248.83 : 627,020.56 = 181,413.20 : x
  2. Step 2: Convert to fraction form
    418,248.83/627,020.56 = 181,413.20/x
  3. Step 3: Cross multiply
    418,248.83x = 627,020.56 × 181,413.20
  4. Step 4: Simplify right side
    418,248.83x = 113,749,805,348.33
  5. Step 5: Solve for x
    x = 113,749,805,348.33/418,248.83
  6. Step 6: Final answer
    x = 271,966.82

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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.