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Finding the Fourth Proportional to 323,155.38, 445,889.16 and 195,756.96

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Solution

The fourth proportional to 323,155.38, 445,889.16 and 195,756.96 is: 270,105.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,155.38 : 445,889.16 = 195,756.96 : x
  2. Step 2: Convert to fraction form
    323,155.38/445,889.16 = 195,756.96/x
  3. Step 3: Cross multiply
    323,155.38x = 445,889.16 × 195,756.96
  4. Step 4: Simplify right side
    323,155.38x = 87,285,906,458.55
  5. Step 5: Solve for x
    x = 87,285,906,458.55/323,155.38
  6. Step 6: Final answer
    x = 270,105.07

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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.