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Finding the Fourth Proportional to 481,406.52, 664,361.73 and 266,546.55

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Solution

The fourth proportional to 481,406.52, 664,361.73 and 266,546.55 is: 367,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,406.52 : 664,361.73 = 266,546.55 : x
  2. Step 2: Convert to fraction form
    481,406.52/664,361.73 = 266,546.55/x
  3. Step 3: Cross multiply
    481,406.52x = 664,361.73 × 266,546.55
  4. Step 4: Simplify right side
    481,406.52x = 177,083,327,083.53
  5. Step 5: Solve for x
    x = 177,083,327,083.53/481,406.52
  6. Step 6: Final answer
    x = 367,845.72

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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.