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Finding the Fourth Proportional to 323,524.20, 485,286.30 and 165,700.20

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Solution

The fourth proportional to 323,524.20, 485,286.30 and 165,700.20 is: 248,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,524.20 : 485,286.30 = 165,700.20 : x
  2. Step 2: Convert to fraction form
    323,524.20/485,286.30 = 165,700.20/x
  3. Step 3: Cross multiply
    323,524.20x = 485,286.30 × 165,700.20
  4. Step 4: Simplify right side
    323,524.20x = 80,412,036,967.26
  5. Step 5: Solve for x
    x = 80,412,036,967.26/323,524.20
  6. Step 6: Final answer
    x = 248,550.30

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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.