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Finding the Third Proportional to 818,927 and 1,771,990

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Solution

The third proportional to 818,927 and 1,771,990 is: 3,834,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,927 : 1,771,990 = 1,771,990 : x
  2. Step 2: Convert to fraction form
    818,927/1,771,990 = 1,771,990/x
  3. Step 3: Cross multiply
    818,927x = 1,771,990 × 1,771,990
  4. Step 4: Simplify right side
    818,927x = 3,139,948,560,100
  5. Step 5: Solve for x
    x = 3,139,948,560,100/818,927
  6. Step 6: Final answer
    x = 3,834,222.78

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.