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Finding the Fourth Proportional to 481,456.87, 664,402.34 and 266,592.31

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Solution

The fourth proportional to 481,456.87, 664,402.34 and 266,592.31 is: 367,892.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,456.87 : 664,402.34 = 266,592.31 : x
  2. Step 2: Convert to fraction form
    481,456.87/664,402.34 = 266,592.31/x
  3. Step 3: Cross multiply
    481,456.87x = 664,402.34 × 266,592.31
  4. Step 4: Simplify right side
    481,456.87x = 177,124,549,935.03
  5. Step 5: Solve for x
    x = 177,124,549,935.03/481,456.87
  6. Step 6: Final answer
    x = 367,892.87

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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.