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Finding the Fourth Proportional to 267,446.40, 400,708.80 and 126,902.40

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Solution

The fourth proportional to 267,446.40, 400,708.80 and 126,902.40 is: 190,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,446.40 : 400,708.80 = 126,902.40 : x
  2. Step 2: Convert to fraction form
    267,446.40/400,708.80 = 126,902.40/x
  3. Step 3: Cross multiply
    267,446.40x = 400,708.80 × 126,902.40
  4. Step 4: Simplify right side
    267,446.40x = 50,850,908,421.12
  5. Step 5: Solve for x
    x = 50,850,908,421.12/267,446.40
  6. Step 6: Final answer
    x = 190,134.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.