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Finding the Fourth Proportional to 481,654.68, 664,654.22 and 266,782.20

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Solution

The fourth proportional to 481,654.68, 664,654.22 and 266,782.20 is: 368,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,654.68 : 664,654.22 = 266,782.20 : x
  2. Step 2: Convert to fraction form
    481,654.68/664,654.22 = 266,782.20/x
  3. Step 3: Cross multiply
    481,654.68x = 664,654.22 × 266,782.20
  4. Step 4: Simplify right side
    481,654.68x = 177,317,915,050.88
  5. Step 5: Solve for x
    x = 177,317,915,050.88/481,654.68
  6. Step 6: Final answer
    x = 368,143.24

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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.