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Finding the Fourth Proportional to 422,291.45, 582,771.67 and 240,999.77

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Solution

The fourth proportional to 422,291.45, 582,771.67 and 240,999.77 is: 332,585.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,291.45 : 582,771.67 = 240,999.77 : x
  2. Step 2: Convert to fraction form
    422,291.45/582,771.67 = 240,999.77/x
  3. Step 3: Cross multiply
    422,291.45x = 582,771.67 × 240,999.77
  4. Step 4: Simplify right side
    422,291.45x = 140,447,838,432.52
  5. Step 5: Solve for x
    x = 140,447,838,432.52/422,291.45
  6. Step 6: Final answer
    x = 332,585.09

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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.