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Finding the Third Proportional to 422,615 and 996,636

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Solution

The third proportional to 422,615 and 996,636 is: 2,350,326.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,615 : 996,636 = 996,636 : x
  2. Step 2: Convert to fraction form
    422,615/996,636 = 996,636/x
  3. Step 3: Cross multiply
    422,615x = 996,636 × 996,636
  4. Step 4: Simplify right side
    422,615x = 993,283,316,496
  5. Step 5: Solve for x
    x = 993,283,316,496/422,615
  6. Step 6: Final answer
    x = 2,350,326.70

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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.