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Finding the Fourth Proportional to 481,980.16, 665,132.56 and 267,152.48

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Solution

The fourth proportional to 481,980.16, 665,132.56 and 267,152.48 is: 368,670.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,980.16 : 665,132.56 = 267,152.48 : x
  2. Step 2: Convert to fraction form
    481,980.16/665,132.56 = 267,152.48/x
  3. Step 3: Cross multiply
    481,980.16x = 665,132.56 × 267,152.48
  4. Step 4: Simplify right side
    481,980.16x = 177,691,812,932.75
  5. Step 5: Solve for x
    x = 177,691,812,932.75/481,980.16
  6. Step 6: Final answer
    x = 368,670.39

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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.