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Finding the Third Proportional to 692,917 and 1,518,242

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Solution

The third proportional to 692,917 and 1,518,242 is: 3,326,601.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,917 : 1,518,242 = 1,518,242 : x
  2. Step 2: Convert to fraction form
    692,917/1,518,242 = 1,518,242/x
  3. Step 3: Cross multiply
    692,917x = 1,518,242 × 1,518,242
  4. Step 4: Simplify right side
    692,917x = 2,305,058,770,564
  5. Step 5: Solve for x
    x = 2,305,058,770,564/692,917
  6. Step 6: Final answer
    x = 3,326,601.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.