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Finding the Fourth Proportional to 481,687.76, 664,729.13 and 266,841.74

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Solution

The fourth proportional to 481,687.76, 664,729.13 and 266,841.74 is: 368,241.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,687.76 : 664,729.13 = 266,841.74 : x
  2. Step 2: Convert to fraction form
    481,687.76/664,729.13 = 266,841.74/x
  3. Step 3: Cross multiply
    481,687.76x = 664,729.13 × 266,841.74
  4. Step 4: Simplify right side
    481,687.76x = 177,377,477,677.89
  5. Step 5: Solve for x
    x = 177,377,477,677.89/481,687.76
  6. Step 6: Final answer
    x = 368,241.61

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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.