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Finding the Fourth Proportional to 418,057.49, 627,082.77 and 248,454.61

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Solution

The fourth proportional to 418,057.49, 627,082.77 and 248,454.61 is: 372,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,057.49 : 627,082.77 = 248,454.61 : x
  2. Step 2: Convert to fraction form
    418,057.49/627,082.77 = 248,454.61/x
  3. Step 3: Cross multiply
    418,057.49x = 627,082.77 × 248,454.61
  4. Step 4: Simplify right side
    418,057.49x = 155,801,605,058.07
  5. Step 5: Solve for x
    x = 155,801,605,058.07/418,057.49
  6. Step 6: Final answer
    x = 372,679.86

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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.