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Finding the Fourth Proportional to 422,763.20, 583,104.12 and 269,906.48

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Solution

The fourth proportional to 422,763.20, 583,104.12 and 269,906.48 is: 372,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,763.20 : 583,104.12 = 269,906.48 : x
  2. Step 2: Convert to fraction form
    422,763.20/583,104.12 = 269,906.48/x
  3. Step 3: Cross multiply
    422,763.20x = 583,104.12 × 269,906.48
  4. Step 4: Simplify right side
    422,763.20x = 157,383,580,502.70
  5. Step 5: Solve for x
    x = 157,383,580,502.70/422,763.20
  6. Step 6: Final answer
    x = 372,273.60

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1.5x scale

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.