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Finding the Third Proportional to 395,854.50 and 853,917

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Solution

The third proportional to 395,854.50 and 853,917 is: 1,842,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,854.50 : 853,917 = 853,917 : x
  2. Step 2: Convert to fraction form
    395,854.50/853,917 = 853,917/x
  3. Step 3: Cross multiply
    395,854.50x = 853,917 × 853,917
  4. Step 4: Simplify right side
    395,854.50x = 729,174,242,889
  5. Step 5: Solve for x
    x = 729,174,242,889/395,854.50
  6. Step 6: Final answer
    x = 1,842,025.90

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.