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Finding the Fourth Proportional to 396,645.11, 547,820.92 and 267,360.60

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Solution

The fourth proportional to 396,645.11, 547,820.92 and 267,360.60 is: 369,261.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,645.11 : 547,820.92 = 267,360.60 : x
  2. Step 2: Convert to fraction form
    396,645.11/547,820.92 = 267,360.60/x
  3. Step 3: Cross multiply
    396,645.11x = 547,820.92 × 267,360.60
  4. Step 4: Simplify right side
    396,645.11x = 146,465,729,863.75
  5. Step 5: Solve for x
    x = 146,465,729,863.75/396,645.11
  6. Step 6: Final answer
    x = 369,261.41

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1.5x scale

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.