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Finding the Fourth Proportional to 481,695.88, 664,731.61 and 266,835.28

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Solution

The fourth proportional to 481,695.88, 664,731.61 and 266,835.28 is: 368,227.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,695.88 : 664,731.61 = 266,835.28 : x
  2. Step 2: Convert to fraction form
    481,695.88/664,731.61 = 266,835.28/x
  3. Step 3: Cross multiply
    481,695.88x = 664,731.61 × 266,835.28
  4. Step 4: Simplify right side
    481,695.88x = 177,373,845,279.20
  5. Step 5: Solve for x
    x = 177,373,845,279.20/481,695.88
  6. Step 6: Final answer
    x = 368,227.86

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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.