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Finding the Fourth Proportional to 481,005.92, 663,781.56 and 266,142.08

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Solution

The fourth proportional to 481,005.92, 663,781.56 and 266,142.08 is: 367,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,005.92 : 663,781.56 = 266,142.08 : x
  2. Step 2: Convert to fraction form
    481,005.92/663,781.56 = 266,142.08/x
  3. Step 3: Cross multiply
    481,005.92x = 663,781.56 × 266,142.08
  4. Step 4: Simplify right side
    481,005.92x = 176,660,205,044.05
  5. Step 5: Solve for x
    x = 176,660,205,044.05/481,005.92
  6. Step 6: Final answer
    x = 367,272.41

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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.