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Finding the Fourth Proportional to 448,604.38, 619,003.02 and 267,311.80

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Solution

The fourth proportional to 448,604.38, 619,003.02 and 267,311.80 is: 368,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,604.38 : 619,003.02 = 267,311.80 : x
  2. Step 2: Convert to fraction form
    448,604.38/619,003.02 = 267,311.80/x
  3. Step 3: Cross multiply
    448,604.38x = 619,003.02 × 267,311.80
  4. Step 4: Simplify right side
    448,604.38x = 165,466,811,481.64
  5. Step 5: Solve for x
    x = 165,466,811,481.64/448,604.38
  6. Step 6: Final answer
    x = 368,847.96

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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.