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Finding the Third Proportional to 655,464 and 996,878

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Solution

The third proportional to 655,464 and 996,878 is: 1,516,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,464 : 996,878 = 996,878 : x
  2. Step 2: Convert to fraction form
    655,464/996,878 = 996,878/x
  3. Step 3: Cross multiply
    655,464x = 996,878 × 996,878
  4. Step 4: Simplify right side
    655,464x = 993,765,746,884
  5. Step 5: Solve for x
    x = 993,765,746,884/655,464
  6. Step 6: Final answer
    x = 1,516,125.59

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.