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Finding the Third Proportional to 179,438.25 and 391,476.75

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Solution

The third proportional to 179,438.25 and 391,476.75 is: 854,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,438.25 : 391,476.75 = 391,476.75 : x
  2. Step 2: Convert to fraction form
    179,438.25/391,476.75 = 391,476.75/x
  3. Step 3: Cross multiply
    179,438.25x = 391,476.75 × 391,476.75
  4. Step 4: Simplify right side
    179,438.25x = 153,254,045,790.56
  5. Step 5: Solve for x
    x = 153,254,045,790.56/179,438.25
  6. Step 6: Final answer
    x = 854,076.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.