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Finding the Fourth Proportional to 322,469.68, 483,703 and 82,583.12

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Solution

The fourth proportional to 322,469.68, 483,703 and 82,583.12 is: 123,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,469.68 : 483,703 = 82,583.12 : x
  2. Step 2: Convert to fraction form
    322,469.68/483,703 = 82,583.12/x
  3. Step 3: Cross multiply
    322,469.68x = 483,703 × 82,583.12
  4. Step 4: Simplify right side
    322,469.68x = 39,945,702,893.36
  5. Step 5: Solve for x
    x = 39,945,702,893.36/322,469.68
  6. Step 6: Final answer
    x = 123,874.29

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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.