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Finding the Third Proportional to 763,966 and 1,618,999

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Solution

The third proportional to 763,966 and 1,618,999 is: 3,430,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,966 : 1,618,999 = 1,618,999 : x
  2. Step 2: Convert to fraction form
    763,966/1,618,999 = 1,618,999/x
  3. Step 3: Cross multiply
    763,966x = 1,618,999 × 1,618,999
  4. Step 4: Simplify right side
    763,966x = 2,621,157,762,001
  5. Step 5: Solve for x
    x = 2,621,157,762,001/763,966
  6. Step 6: Final answer
    x = 3,430,987.45

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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.