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Finding the Fourth Proportional to 451,381.76, 622,760.40 and 267,634.88

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Solution

The fourth proportional to 451,381.76, 622,760.40 and 267,634.88 is: 369,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,381.76 : 622,760.40 = 267,634.88 : x
  2. Step 2: Convert to fraction form
    451,381.76/622,760.40 = 267,634.88/x
  3. Step 3: Cross multiply
    451,381.76x = 622,760.40 × 267,634.88
  4. Step 4: Simplify right side
    451,381.76x = 166,672,404,922.75
  5. Step 5: Solve for x
    x = 166,672,404,922.75/451,381.76
  6. Step 6: Final answer
    x = 369,249.31

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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.