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Finding the Fourth Proportional to 322,522.03, 483,791.55 and 85,865.14

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Solution

The fourth proportional to 322,522.03, 483,791.55 and 85,865.14 is: 128,799.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,522.03 : 483,791.55 = 85,865.14 : x
  2. Step 2: Convert to fraction form
    322,522.03/483,791.55 = 85,865.14/x
  3. Step 3: Cross multiply
    322,522.03x = 483,791.55 × 85,865.14
  4. Step 4: Simplify right side
    322,522.03x = 41,540,829,171.57
  5. Step 5: Solve for x
    x = 41,540,829,171.57/322,522.03
  6. Step 6: Final answer
    x = 128,799.97

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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.