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Finding the Third Proportional to 861,039 and 1,203,781.50

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Solution

The third proportional to 861,039 and 1,203,781.50 is: 1,682,955.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,039 : 1,203,781.50 = 1,203,781.50 : x
  2. Step 2: Convert to fraction form
    861,039/1,203,781.50 = 1,203,781.50/x
  3. Step 3: Cross multiply
    861,039x = 1,203,781.50 × 1,203,781.50
  4. Step 4: Simplify right side
    861,039x = 1,449,089,899,742.25
  5. Step 5: Solve for x
    x = 1,449,089,899,742.25/861,039
  6. Step 6: Final answer
    x = 1,682,955.01

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.