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Finding the Fourth Proportional to 329,174.78, 454,079.30 and 267,986.79

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Solution

The fourth proportional to 329,174.78, 454,079.30 and 267,986.79 is: 369,673.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,174.78 : 454,079.30 = 267,986.79 : x
  2. Step 2: Convert to fraction form
    329,174.78/454,079.30 = 267,986.79/x
  3. Step 3: Cross multiply
    329,174.78x = 454,079.30 × 267,986.79
  4. Step 4: Simplify right side
    329,174.78x = 121,687,252,672.51
  5. Step 5: Solve for x
    x = 121,687,252,672.51/329,174.78
  6. Step 6: Final answer
    x = 369,673.69

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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.