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Finding the Fourth Proportional to 330,494.01, 495,587.91 and 267,158.49

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Solution

The fourth proportional to 330,494.01, 495,587.91 and 267,158.49 is: 400,613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,494.01 : 495,587.91 = 267,158.49 : x
  2. Step 2: Convert to fraction form
    330,494.01/495,587.91 = 267,158.49/x
  3. Step 3: Cross multiply
    330,494.01x = 495,587.91 × 267,158.49
  4. Step 4: Simplify right side
    330,494.01x = 132,400,517,697.86
  5. Step 5: Solve for x
    x = 132,400,517,697.86/330,494.01
  6. Step 6: Final answer
    x = 400,613.97

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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.