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Finding the Third Proportional to 476,100 and 991,656

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Solution

The third proportional to 476,100 and 991,656 is: 2,065,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,100 : 991,656 = 991,656 : x
  2. Step 2: Convert to fraction form
    476,100/991,656 = 991,656/x
  3. Step 3: Cross multiply
    476,100x = 991,656 × 991,656
  4. Step 4: Simplify right side
    476,100x = 983,381,622,336
  5. Step 5: Solve for x
    x = 983,381,622,336/476,100
  6. Step 6: Final answer
    x = 2,065,493.85

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.