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Finding the Fourth Proportional to 574,017.80, 861,220.31 and 254,125.49

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Solution

The fourth proportional to 574,017.80, 861,220.31 and 254,125.49 is: 381,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,017.80 : 861,220.31 = 254,125.49 : x
  2. Step 2: Convert to fraction form
    574,017.80/861,220.31 = 254,125.49/x
  3. Step 3: Cross multiply
    574,017.80x = 861,220.31 × 254,125.49
  4. Step 4: Simplify right side
    574,017.80x = 218,858,027,699.97
  5. Step 5: Solve for x
    x = 218,858,027,699.97/574,017.80
  6. Step 6: Final answer
    x = 381,273.94

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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.