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Finding the Fourth Proportional to 422,367.39, 582,866.97 and 252,601.50

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Solution

The fourth proportional to 422,367.39, 582,866.97 and 252,601.50 is: 348,590.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,367.39 : 582,866.97 = 252,601.50 : x
  2. Step 2: Convert to fraction form
    422,367.39/582,866.97 = 252,601.50/x
  3. Step 3: Cross multiply
    422,367.39x = 582,866.97 × 252,601.50
  4. Step 4: Simplify right side
    422,367.39x = 147,233,070,922.46
  5. Step 5: Solve for x
    x = 147,233,070,922.46/422,367.39
  6. Step 6: Final answer
    x = 348,590.05

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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.