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Finding the Third Proportional to 916,601 and 2,015,939

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Solution

The third proportional to 916,601 and 2,015,939 is: 4,433,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,601 : 2,015,939 = 2,015,939 : x
  2. Step 2: Convert to fraction form
    916,601/2,015,939 = 2,015,939/x
  3. Step 3: Cross multiply
    916,601x = 2,015,939 × 2,015,939
  4. Step 4: Simplify right side
    916,601x = 4,064,010,051,721
  5. Step 5: Solve for x
    x = 4,064,010,051,721/916,601
  6. Step 6: Final answer
    x = 4,433,783.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.