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Finding the Fourth Proportional to 329,638.38, 454,901.22 and 178,735.38

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Solution

The fourth proportional to 329,638.38, 454,901.22 and 178,735.38 is: 246,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,638.38 : 454,901.22 = 178,735.38 : x
  2. Step 2: Convert to fraction form
    329,638.38/454,901.22 = 178,735.38/x
  3. Step 3: Cross multiply
    329,638.38x = 454,901.22 × 178,735.38
  4. Step 4: Simplify right side
    329,638.38x = 81,306,942,419.16
  5. Step 5: Solve for x
    x = 81,306,942,419.16/329,638.38
  6. Step 6: Final answer
    x = 246,654.96

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1.5x scale

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.