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Finding the Fourth Proportional to 481,987.53, 665,142.85 and 267,141.46

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Solution

The fourth proportional to 481,987.53, 665,142.85 and 267,141.46 is: 368,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,987.53 : 665,142.85 = 267,141.46 : x
  2. Step 2: Convert to fraction form
    481,987.53/665,142.85 = 267,141.46/x
  3. Step 3: Cross multiply
    481,987.53x = 665,142.85 × 267,141.46
  4. Step 4: Simplify right side
    481,987.53x = 177,687,232,057.56
  5. Step 5: Solve for x
    x = 177,687,232,057.56/481,987.53
  6. Step 6: Final answer
    x = 368,655.25

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1.5x scale

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.