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Finding the Fourth Proportional to 422,881.22, 583,584.09 and 231,883.22

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Solution

The fourth proportional to 422,881.22, 583,584.09 and 231,883.22 is: 320,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,881.22 : 583,584.09 = 231,883.22 : x
  2. Step 2: Convert to fraction form
    422,881.22/583,584.09 = 231,883.22/x
  3. Step 3: Cross multiply
    422,881.22x = 583,584.09 × 231,883.22
  4. Step 4: Simplify right side
    422,881.22x = 135,323,357,929.97
  5. Step 5: Solve for x
    x = 135,323,357,929.97/422,881.22
  6. Step 6: Final answer
    x = 320,003.23

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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.