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Finding the Fourth Proportional to 481,963.90, 665,110.18 and 267,117.80

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Solution

The fourth proportional to 481,963.90, 665,110.18 and 267,117.80 is: 368,622.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,963.90 : 665,110.18 = 267,117.80 : x
  2. Step 2: Convert to fraction form
    481,963.90/665,110.18 = 267,117.80/x
  3. Step 3: Cross multiply
    481,963.90x = 665,110.18 × 267,117.80
  4. Step 4: Simplify right side
    481,963.90x = 177,662,766,703.62
  5. Step 5: Solve for x
    x = 177,662,766,703.62/481,963.90
  6. Step 6: Final answer
    x = 368,622.56

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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.