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Finding the Fourth Proportional to 206,593.20, 309,889.80 and 197,845.20

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Solution

The fourth proportional to 206,593.20, 309,889.80 and 197,845.20 is: 296,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,593.20 : 309,889.80 = 197,845.20 : x
  2. Step 2: Convert to fraction form
    206,593.20/309,889.80 = 197,845.20/x
  3. Step 3: Cross multiply
    206,593.20x = 309,889.80 × 197,845.20
  4. Step 4: Simplify right side
    206,593.20x = 61,310,209,458.96
  5. Step 5: Solve for x
    x = 61,310,209,458.96/206,593.20
  6. Step 6: Final answer
    x = 296,767.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.