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Finding the Third Proportional to 455,530 and 996,865

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Solution

The third proportional to 455,530 and 996,865 is: 2,181,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,530 : 996,865 = 996,865 : x
  2. Step 2: Convert to fraction form
    455,530/996,865 = 996,865/x
  3. Step 3: Cross multiply
    455,530x = 996,865 × 996,865
  4. Step 4: Simplify right side
    455,530x = 993,739,828,225
  5. Step 5: Solve for x
    x = 993,739,828,225/455,530
  6. Step 6: Final answer
    x = 2,181,502.49

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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.