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Finding the Third Proportional to 180,790 and 396,044

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Solution

The third proportional to 180,790 and 396,044 is: 867,585.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,790 : 396,044 = 396,044 : x
  2. Step 2: Convert to fraction form
    180,790/396,044 = 396,044/x
  3. Step 3: Cross multiply
    180,790x = 396,044 × 396,044
  4. Step 4: Simplify right side
    180,790x = 156,850,849,936
  5. Step 5: Solve for x
    x = 156,850,849,936/180,790
  6. Step 6: Final answer
    x = 867,585.87

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.