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Finding the Fourth Proportional to 428,854.48, 591,431.84 and 267,724.48

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Solution

The fourth proportional to 428,854.48, 591,431.84 and 267,724.48 is: 369,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,854.48 : 591,431.84 = 267,724.48 : x
  2. Step 2: Convert to fraction form
    428,854.48/591,431.84 = 267,724.48/x
  3. Step 3: Cross multiply
    428,854.48x = 591,431.84 × 267,724.48
  4. Step 4: Simplify right side
    428,854.48x = 158,340,781,819.44
  5. Step 5: Solve for x
    x = 158,340,781,819.44/428,854.48
  6. Step 6: Final answer
    x = 369,217.97

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