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Finding the Fourth Proportional to 422,364.64, 582,717.48 and 240,945.68

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Solution

The fourth proportional to 422,364.64, 582,717.48 and 240,945.68 is: 332,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,364.64 : 582,717.48 = 240,945.68 : x
  2. Step 2: Convert to fraction form
    422,364.64/582,717.48 = 240,945.68/x
  3. Step 3: Cross multiply
    422,364.64x = 582,717.48 × 240,945.68
  4. Step 4: Simplify right side
    422,364.64x = 140,403,259,466.49
  5. Step 5: Solve for x
    x = 140,403,259,466.49/422,364.64
  6. Step 6: Final answer
    x = 332,421.91

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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.