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Finding the Fourth Proportional to 481,898.12, 665,023.32 and 267,041.78

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Solution

The fourth proportional to 481,898.12, 665,023.32 and 267,041.78 is: 368,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,898.12 : 665,023.32 = 267,041.78 : x
  2. Step 2: Convert to fraction form
    481,898.12/665,023.32 = 267,041.78/x
  3. Step 3: Cross multiply
    481,898.12x = 665,023.32 × 267,041.78
  4. Step 4: Simplify right side
    481,898.12x = 177,589,011,114.31
  5. Step 5: Solve for x
    x = 177,589,011,114.31/481,898.12
  6. Step 6: Final answer
    x = 368,519.83

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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.