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Finding the Fourth Proportional to 271,864.20, 407,796.30 and 267,198.60

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Solution

The fourth proportional to 271,864.20, 407,796.30 and 267,198.60 is: 400,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,864.20 : 407,796.30 = 267,198.60 : x
  2. Step 2: Convert to fraction form
    271,864.20/407,796.30 = 267,198.60/x
  3. Step 3: Cross multiply
    271,864.20x = 407,796.30 × 267,198.60
  4. Step 4: Simplify right side
    271,864.20x = 108,962,600,445.18
  5. Step 5: Solve for x
    x = 108,962,600,445.18/271,864.20
  6. Step 6: Final answer
    x = 400,797.90

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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.