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Finding the Fourth Proportional to 328,420.97, 453,221.59 and 177,517.97

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Solution

The fourth proportional to 328,420.97, 453,221.59 and 177,517.97 is: 244,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,420.97 : 453,221.59 = 177,517.97 : x
  2. Step 2: Convert to fraction form
    328,420.97/453,221.59 = 177,517.97/x
  3. Step 3: Cross multiply
    328,420.97x = 453,221.59 × 177,517.97
  4. Step 4: Simplify right side
    328,420.97x = 80,454,976,616.97
  5. Step 5: Solve for x
    x = 80,454,976,616.97/328,420.97
  6. Step 6: Final answer
    x = 244,975.15

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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.