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Finding the Fourth Proportional to 322,350.40, 482,942.40 and 275,694.40

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Solution

The fourth proportional to 322,350.40, 482,942.40 and 275,694.40 is: 413,042.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,350.40 : 482,942.40 = 275,694.40 : x
  2. Step 2: Convert to fraction form
    322,350.40/482,942.40 = 275,694.40/x
  3. Step 3: Cross multiply
    322,350.40x = 482,942.40 × 275,694.40
  4. Step 4: Simplify right side
    322,350.40x = 133,144,515,202.56
  5. Step 5: Solve for x
    x = 133,144,515,202.56/322,350.40
  6. Step 6: Final answer
    x = 413,042.81

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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.