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Finding the Fourth Proportional to 481,402.50, 664,356.20 and 266,542.56

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Solution

The fourth proportional to 481,402.50, 664,356.20 and 266,542.56 is: 367,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,402.50 : 664,356.20 = 266,542.56 : x
  2. Step 2: Convert to fraction form
    481,402.50/664,356.20 = 266,542.56/x
  3. Step 3: Cross multiply
    481,402.50x = 664,356.20 × 266,542.56
  4. Step 4: Simplify right side
    481,402.50x = 177,079,202,299.87
  5. Step 5: Solve for x
    x = 177,079,202,299.87/481,402.50
  6. Step 6: Final answer
    x = 367,840.22

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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.