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Finding the Third Proportional to 455,691 and 997,161

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Solution

The third proportional to 455,691 and 997,161 is: 2,182,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,691 : 997,161 = 997,161 : x
  2. Step 2: Convert to fraction form
    455,691/997,161 = 997,161/x
  3. Step 3: Cross multiply
    455,691x = 997,161 × 997,161
  4. Step 4: Simplify right side
    455,691x = 994,330,059,921
  5. Step 5: Solve for x
    x = 994,330,059,921/455,691
  6. Step 6: Final answer
    x = 2,182,026.99

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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.