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Finding the Fourth Proportional to 675,278.62, 932,171.46 and 420,755.56

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Solution

The fourth proportional to 675,278.62, 932,171.46 and 420,755.56 is: 580,821.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,278.62 : 932,171.46 = 420,755.56 : x
  2. Step 2: Convert to fraction form
    675,278.62/932,171.46 = 420,755.56/x
  3. Step 3: Cross multiply
    675,278.62x = 932,171.46 × 420,755.56
  4. Step 4: Simplify right side
    675,278.62x = 392,216,324,668.32
  5. Step 5: Solve for x
    x = 392,216,324,668.32/675,278.62
  6. Step 6: Final answer
    x = 580,821.48

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