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Finding the Fourth Proportional to 451,143.68, 622,570.13 and 267,505.83

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Solution

The fourth proportional to 451,143.68, 622,570.13 and 267,505.83 is: 369,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,143.68 : 622,570.13 = 267,505.83 : x
  2. Step 2: Convert to fraction form
    451,143.68/622,570.13 = 267,505.83/x
  3. Step 3: Cross multiply
    451,143.68x = 622,570.13 × 267,505.83
  4. Step 4: Simplify right side
    451,143.68x = 166,541,138,021.33
  5. Step 5: Solve for x
    x = 166,541,138,021.33/451,143.68
  6. Step 6: Final answer
    x = 369,153.21

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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.