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Finding the Third Proportional to 455,217 and 996,153

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Solution

The third proportional to 455,217 and 996,153 is: 2,179,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,217 : 996,153 = 996,153 : x
  2. Step 2: Convert to fraction form
    455,217/996,153 = 996,153/x
  3. Step 3: Cross multiply
    455,217x = 996,153 × 996,153
  4. Step 4: Simplify right side
    455,217x = 992,320,799,409
  5. Step 5: Solve for x
    x = 992,320,799,409/455,217
  6. Step 6: Final answer
    x = 2,179,885.20

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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.