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Finding the Fourth Proportional to 328,995.20, 454,013.44 and 178,092.20

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Solution

The fourth proportional to 328,995.20, 454,013.44 and 178,092.20 is: 245,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,995.20 : 454,013.44 = 178,092.20 : x
  2. Step 2: Convert to fraction form
    328,995.20/454,013.44 = 178,092.20/x
  3. Step 3: Cross multiply
    328,995.20x = 454,013.44 × 178,092.20
  4. Step 4: Simplify right side
    328,995.20x = 80,856,253,048.97
  5. Step 5: Solve for x
    x = 80,856,253,048.97/328,995.20
  6. Step 6: Final answer
    x = 245,767.27

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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.