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Finding the Fourth Proportional to 481,977.16, 665,128.42 and 267,149.48

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Solution

The fourth proportional to 481,977.16, 665,128.42 and 267,149.48 is: 368,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,977.16 : 665,128.42 = 267,149.48 : x
  2. Step 2: Convert to fraction form
    481,977.16/665,128.42 = 267,149.48/x
  3. Step 3: Cross multiply
    481,977.16x = 665,128.42 × 267,149.48
  4. Step 4: Simplify right side
    481,977.16x = 177,688,711,536.22
  5. Step 5: Solve for x
    x = 177,688,711,536.22/481,977.16
  6. Step 6: Final answer
    x = 368,666.25

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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.