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Finding the Third Proportional to 517,828 and 699,616

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Solution

The third proportional to 517,828 and 699,616 is: 945,222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,828 : 699,616 = 699,616 : x
  2. Step 2: Convert to fraction form
    517,828/699,616 = 699,616/x
  3. Step 3: Cross multiply
    517,828x = 699,616 × 699,616
  4. Step 4: Simplify right side
    517,828x = 489,462,547,456
  5. Step 5: Solve for x
    x = 489,462,547,456/517,828
  6. Step 6: Final answer
    x = 945,222.25

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.