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Finding the Fourth Proportional to 667,013, 1,000,796.70 and 267,936.80

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Solution

The fourth proportional to 667,013, 1,000,796.70 and 267,936.80 is: 402,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,013 : 1,000,796.70 = 267,936.80 : x
  2. Step 2: Convert to fraction form
    667,013/1,000,796.70 = 267,936.80/x
  3. Step 3: Cross multiply
    667,013x = 1,000,796.70 × 267,936.80
  4. Step 4: Simplify right side
    667,013x = 268,150,265,248.56
  5. Step 5: Solve for x
    x = 268,150,265,248.56/667,013
  6. Step 6: Final answer
    x = 402,016.55

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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.