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Finding the Third Proportional to 882,420 and 1,242,629

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Solution

The third proportional to 882,420 and 1,242,629 is: 1,749,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,420 : 1,242,629 = 1,242,629 : x
  2. Step 2: Convert to fraction form
    882,420/1,242,629 = 1,242,629/x
  3. Step 3: Cross multiply
    882,420x = 1,242,629 × 1,242,629
  4. Step 4: Simplify right side
    882,420x = 1,544,126,831,641
  5. Step 5: Solve for x
    x = 1,544,126,831,641/882,420
  6. Step 6: Final answer
    x = 1,749,877.42

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.