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Finding the Fourth Proportional to 329,331.18, 454,478.92 and 178,428.18

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Solution

The fourth proportional to 329,331.18, 454,478.92 and 178,428.18 is: 246,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,331.18 : 454,478.92 = 178,428.18 : x
  2. Step 2: Convert to fraction form
    329,331.18/454,478.92 = 178,428.18/x
  3. Step 3: Cross multiply
    329,331.18x = 454,478.92 × 178,428.18
  4. Step 4: Simplify right side
    329,331.18x = 81,091,846,543.97
  5. Step 5: Solve for x
    x = 81,091,846,543.97/329,331.18
  6. Step 6: Final answer
    x = 246,231.91

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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.