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Finding the Fourth Proportional to 451,098.71, 622,419.33 and 267,395.20

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Solution

The fourth proportional to 451,098.71, 622,419.33 and 267,395.20 is: 368,947.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,098.71 : 622,419.33 = 267,395.20 : x
  2. Step 2: Convert to fraction form
    451,098.71/622,419.33 = 267,395.20/x
  3. Step 3: Cross multiply
    451,098.71x = 622,419.33 × 267,395.20
  4. Step 4: Simplify right side
    451,098.71x = 166,431,940,675.90
  5. Step 5: Solve for x
    x = 166,431,940,675.90/451,098.71
  6. Step 6: Final answer
    x = 368,947.94

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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.