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Finding the Fourth Proportional to 481,003.95, 663,757.72 and 266,131.20

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Solution

The fourth proportional to 481,003.95, 663,757.72 and 266,131.20 is: 367,245.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,003.95 : 663,757.72 = 266,131.20 : x
  2. Step 2: Convert to fraction form
    481,003.95/663,757.72 = 266,131.20/x
  3. Step 3: Cross multiply
    481,003.95x = 663,757.72 × 266,131.20
  4. Step 4: Simplify right side
    481,003.95x = 176,646,633,883.42
  5. Step 5: Solve for x
    x = 176,646,633,883.42/481,003.95
  6. Step 6: Final answer
    x = 367,245.71

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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.