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Finding the Fourth Proportional to 322,138.69, 444,557.42 and 178,912.15

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Solution

The fourth proportional to 322,138.69, 444,557.42 and 178,912.15 is: 246,902.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,138.69 : 444,557.42 = 178,912.15 : x
  2. Step 2: Convert to fraction form
    322,138.69/444,557.42 = 178,912.15/x
  3. Step 3: Cross multiply
    322,138.69x = 444,557.42 × 178,912.15
  4. Step 4: Simplify right side
    322,138.69x = 79,536,723,810.65
  5. Step 5: Solve for x
    x = 79,536,723,810.65/322,138.69
  6. Step 6: Final answer
    x = 246,902.11

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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.