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Finding the Fourth Proportional to 451,490.94, 622,969.75 and 267,695.56

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Solution

The fourth proportional to 451,490.94, 622,969.75 and 267,695.56 is: 369,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,490.94 : 622,969.75 = 267,695.56 : x
  2. Step 2: Convert to fraction form
    451,490.94/622,969.75 = 267,695.56/x
  3. Step 3: Cross multiply
    451,490.94x = 622,969.75 × 267,695.56
  4. Step 4: Simplify right side
    451,490.94x = 166,766,236,089.31
  5. Step 5: Solve for x
    x = 166,766,236,089.31/451,490.94
  6. Step 6: Final answer
    x = 369,367.85

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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.