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Finding the Third Proportional to 763,963 and 1,618,993

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Solution

The third proportional to 763,963 and 1,618,993 is: 3,430,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,963 : 1,618,993 = 1,618,993 : x
  2. Step 2: Convert to fraction form
    763,963/1,618,993 = 1,618,993/x
  3. Step 3: Cross multiply
    763,963x = 1,618,993 × 1,618,993
  4. Step 4: Simplify right side
    763,963x = 2,621,138,334,049
  5. Step 5: Solve for x
    x = 2,621,138,334,049/763,963
  6. Step 6: Final answer
    x = 3,430,975.50

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.