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Finding the Third Proportional to 622,818 and 1,345,509

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Solution

The third proportional to 622,818 and 1,345,509 is: 2,906,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,818 : 1,345,509 = 1,345,509 : x
  2. Step 2: Convert to fraction form
    622,818/1,345,509 = 1,345,509/x
  3. Step 3: Cross multiply
    622,818x = 1,345,509 × 1,345,509
  4. Step 4: Simplify right side
    622,818x = 1,810,394,469,081
  5. Step 5: Solve for x
    x = 1,810,394,469,081/622,818
  6. Step 6: Final answer
    x = 2,906,779.30

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.