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Finding the Fourth Proportional to 422,917.12, 583,571.82 and 241,640.79

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Solution

The fourth proportional to 422,917.12, 583,571.82 and 241,640.79 is: 333,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,917.12 : 583,571.82 = 241,640.79 : x
  2. Step 2: Convert to fraction form
    422,917.12/583,571.82 = 241,640.79/x
  3. Step 3: Cross multiply
    422,917.12x = 583,571.82 × 241,640.79
  4. Step 4: Simplify right side
    422,917.12x = 141,014,755,606.54
  5. Step 5: Solve for x
    x = 141,014,755,606.54/422,917.12
  6. Step 6: Final answer
    x = 333,433.55

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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.