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Finding the Third Proportional to 682,721 and 983,436

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Solution

The third proportional to 682,721 and 983,436 is: 1,416,605.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,721 : 983,436 = 983,436 : x
  2. Step 2: Convert to fraction form
    682,721/983,436 = 983,436/x
  3. Step 3: Cross multiply
    682,721x = 983,436 × 983,436
  4. Step 4: Simplify right side
    682,721x = 967,146,366,096
  5. Step 5: Solve for x
    x = 967,146,366,096/682,721
  6. Step 6: Final answer
    x = 1,416,605.56

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.