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Finding the Third Proportional to 324,243 and 517,986

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Solution

The third proportional to 324,243 and 517,986 is: 827,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,243 : 517,986 = 517,986 : x
  2. Step 2: Convert to fraction form
    324,243/517,986 = 517,986/x
  3. Step 3: Cross multiply
    324,243x = 517,986 × 517,986
  4. Step 4: Simplify right side
    324,243x = 268,309,496,196
  5. Step 5: Solve for x
    x = 268,309,496,196/324,243
  6. Step 6: Final answer
    x = 827,495.11

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.