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Finding the Fourth Proportional to 622,604.20, 934,343.70 and 267,872.80

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Solution

The fourth proportional to 622,604.20, 934,343.70 and 267,872.80 is: 401,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,604.20 : 934,343.70 = 267,872.80 : x
  2. Step 2: Convert to fraction form
    622,604.20/934,343.70 = 267,872.80/x
  3. Step 3: Cross multiply
    622,604.20x = 934,343.70 × 267,872.80
  4. Step 4: Simplify right side
    622,604.20x = 250,285,263,081.36
  5. Step 5: Solve for x
    x = 250,285,263,081.36/622,604.20
  6. Step 6: Final answer
    x = 401,997.39

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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.