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Finding the Fourth Proportional to 422,295.26, 582,767.61 and 231,311.84

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Solution

The fourth proportional to 422,295.26, 582,767.61 and 231,311.84 is: 319,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,295.26 : 582,767.61 = 231,311.84 : x
  2. Step 2: Convert to fraction form
    422,295.26/582,767.61 = 231,311.84/x
  3. Step 3: Cross multiply
    422,295.26x = 582,767.61 × 231,311.84
  4. Step 4: Simplify right side
    422,295.26x = 134,801,048,161.50
  5. Step 5: Solve for x
    x = 134,801,048,161.50/422,295.26
  6. Step 6: Final answer
    x = 319,210.42

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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.