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Finding the Fourth Proportional to 481,474.25, 664,426.29 and 266,609.70

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Solution

The fourth proportional to 481,474.25, 664,426.29 and 266,609.70 is: 367,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,474.25 : 664,426.29 = 266,609.70 : x
  2. Step 2: Convert to fraction form
    481,474.25/664,426.29 = 266,609.70/x
  3. Step 3: Cross multiply
    481,474.25x = 664,426.29 × 266,609.70
  4. Step 4: Simplify right side
    481,474.25x = 177,142,493,849.01
  5. Step 5: Solve for x
    x = 177,142,493,849.01/481,474.25
  6. Step 6: Final answer
    x = 367,916.86

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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.