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Finding the Fourth Proportional to 322,320.82, 444,939.12 and 217,567.48

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Solution

The fourth proportional to 322,320.82, 444,939.12 and 217,567.48 is: 300,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,320.82 : 444,939.12 = 217,567.48 : x
  2. Step 2: Convert to fraction form
    322,320.82/444,939.12 = 217,567.48/x
  3. Step 3: Cross multiply
    322,320.82x = 444,939.12 × 217,567.48
  4. Step 4: Simplify right side
    322,320.82x = 96,804,283,091.82
  5. Step 5: Solve for x
    x = 96,804,283,091.82/322,320.82
  6. Step 6: Final answer
    x = 300,335.18

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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.