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Finding the Fourth Proportional to 481,895.87, 665,020.21 and 267,039.53

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Solution

The fourth proportional to 481,895.87, 665,020.21 and 267,039.53 is: 368,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,895.87 : 665,020.21 = 267,039.53 : x
  2. Step 2: Convert to fraction form
    481,895.87/665,020.21 = 267,039.53/x
  3. Step 3: Cross multiply
    481,895.87x = 665,020.21 × 267,039.53
  4. Step 4: Simplify right side
    481,895.87x = 177,586,680,993.80
  5. Step 5: Solve for x
    x = 177,586,680,993.80/481,895.87
  6. Step 6: Final answer
    x = 368,516.71

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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.