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Finding the Fourth Proportional to 493,785.88, 681,425.46 and 267,431.44

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Solution

The fourth proportional to 493,785.88, 681,425.46 and 267,431.44 is: 369,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,785.88 : 681,425.46 = 267,431.44 : x
  2. Step 2: Convert to fraction form
    493,785.88/681,425.46 = 267,431.44/x
  3. Step 3: Cross multiply
    493,785.88x = 681,425.46 × 267,431.44
  4. Step 4: Simplify right side
    493,785.88x = 182,234,592,020.46
  5. Step 5: Solve for x
    x = 182,234,592,020.46/493,785.88
  6. Step 6: Final answer
    x = 369,055.90

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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.