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Finding the Third Proportional to 186,878 and 438,725

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Solution

The third proportional to 186,878 and 438,725 is: 1,029,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,878 : 438,725 = 438,725 : x
  2. Step 2: Convert to fraction form
    186,878/438,725 = 438,725/x
  3. Step 3: Cross multiply
    186,878x = 438,725 × 438,725
  4. Step 4: Simplify right side
    186,878x = 192,479,625,625
  5. Step 5: Solve for x
    x = 192,479,625,625/186,878
  6. Step 6: Final answer
    x = 1,029,974.77

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.