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Finding the Fourth Proportional to 483,891.45, 667,781.04 and 266,086.32

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Solution

The fourth proportional to 483,891.45, 667,781.04 and 266,086.32 is: 367,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,891.45 : 667,781.04 = 266,086.32 : x
  2. Step 2: Convert to fraction form
    483,891.45/667,781.04 = 266,086.32/x
  3. Step 3: Cross multiply
    483,891.45x = 667,781.04 × 266,086.32
  4. Step 4: Simplify right side
    483,891.45x = 177,687,394,830.04
  5. Step 5: Solve for x
    x = 177,687,394,830.04/483,891.45
  6. Step 6: Final answer
    x = 367,205.08

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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.