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Finding the Third Proportional to 422,646 and 996,688

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Solution

The third proportional to 422,646 and 996,688 is: 2,350,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,646 : 996,688 = 996,688 : x
  2. Step 2: Convert to fraction form
    422,646/996,688 = 996,688/x
  3. Step 3: Cross multiply
    422,646x = 996,688 × 996,688
  4. Step 4: Simplify right side
    422,646x = 993,386,969,344
  5. Step 5: Solve for x
    x = 993,386,969,344/422,646
  6. Step 6: Final answer
    x = 2,350,399.55

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.