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Finding the Fourth Proportional to 425,843.27, 587,515.31 and 272,965.75

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Solution

The fourth proportional to 425,843.27, 587,515.31 and 272,965.75 is: 376,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,843.27 : 587,515.31 = 272,965.75 : x
  2. Step 2: Convert to fraction form
    425,843.27/587,515.31 = 272,965.75/x
  3. Step 3: Cross multiply
    425,843.27x = 587,515.31 × 272,965.75
  4. Step 4: Simplify right side
    425,843.27x = 160,371,560,260.84
  5. Step 5: Solve for x
    x = 160,371,560,260.84/425,843.27
  6. Step 6: Final answer
    x = 376,597.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.