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Finding the Third Proportional to 175,854 and 378,350

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Solution

The third proportional to 175,854 and 378,350 is: 814,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,854 : 378,350 = 378,350 : x
  2. Step 2: Convert to fraction form
    175,854/378,350 = 378,350/x
  3. Step 3: Cross multiply
    175,854x = 378,350 × 378,350
  4. Step 4: Simplify right side
    175,854x = 143,148,722,500
  5. Step 5: Solve for x
    x = 143,148,722,500/175,854
  6. Step 6: Final answer
    x = 814,020.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.