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Finding the Fourth Proportional to 481,919.75, 665,063.84 and 267,039.71

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Solution

The fourth proportional to 481,919.75, 665,063.84 and 267,039.71 is: 368,522.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,919.75 : 665,063.84 = 267,039.71 : x
  2. Step 2: Convert to fraction form
    481,919.75/665,063.84 = 267,039.71/x
  3. Step 3: Cross multiply
    481,919.75x = 665,063.84 × 267,039.71
  4. Step 4: Simplify right side
    481,919.75x = 177,598,453,629.89
  5. Step 5: Solve for x
    x = 177,598,453,629.89/481,919.75
  6. Step 6: Final answer
    x = 368,522.88

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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.