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Finding the Third Proportional to 619,852 and 872,872

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Solution

The third proportional to 619,852 and 872,872 is: 1,229,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,852 : 872,872 = 872,872 : x
  2. Step 2: Convert to fraction form
    619,852/872,872 = 872,872/x
  3. Step 3: Cross multiply
    619,852x = 872,872 × 872,872
  4. Step 4: Simplify right side
    619,852x = 761,905,528,384
  5. Step 5: Solve for x
    x = 761,905,528,384/619,852
  6. Step 6: Final answer
    x = 1,229,173.30

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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.