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Finding the Third Proportional to 916,603 and 2,015,943

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Solution

The third proportional to 916,603 and 2,015,943 is: 4,433,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,603 : 2,015,943 = 2,015,943 : x
  2. Step 2: Convert to fraction form
    916,603/2,015,943 = 2,015,943/x
  3. Step 3: Cross multiply
    916,603x = 2,015,943 × 2,015,943
  4. Step 4: Simplify right side
    916,603x = 4,064,026,179,249
  5. Step 5: Solve for x
    x = 4,064,026,179,249/916,603
  6. Step 6: Final answer
    x = 4,433,791.05

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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.