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Finding the Fourth Proportional to 481,921.76, 665,057.58 and 267,065.48

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Solution

The fourth proportional to 481,921.76, 665,057.58 and 267,065.48 is: 368,553.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,921.76 : 665,057.58 = 267,065.48 : x
  2. Step 2: Convert to fraction form
    481,921.76/665,057.58 = 267,065.48/x
  3. Step 3: Cross multiply
    481,921.76x = 665,057.58 × 267,065.48
  4. Step 4: Simplify right side
    481,921.76x = 177,613,921,830.34
  5. Step 5: Solve for x
    x = 177,613,921,830.34/481,921.76
  6. Step 6: Final answer
    x = 368,553.44

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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.