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Finding the Fourth Proportional to 451,100.71, 622,422.09 and 267,397.20

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Solution

The fourth proportional to 451,100.71, 622,422.09 and 267,397.20 is: 368,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,100.71 : 622,422.09 = 267,397.20 : x
  2. Step 2: Convert to fraction form
    451,100.71/622,422.09 = 267,397.20/x
  3. Step 3: Cross multiply
    451,100.71x = 622,422.09 × 267,397.20
  4. Step 4: Simplify right side
    451,100.71x = 166,433,924,084.15
  5. Step 5: Solve for x
    x = 166,433,924,084.15/451,100.71
  6. Step 6: Final answer
    x = 368,950.70

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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.