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Finding the Third Proportional to 622,712 and 1,360,790

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Solution

The third proportional to 622,712 and 1,360,790 is: 2,973,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,712 : 1,360,790 = 1,360,790 : x
  2. Step 2: Convert to fraction form
    622,712/1,360,790 = 1,360,790/x
  3. Step 3: Cross multiply
    622,712x = 1,360,790 × 1,360,790
  4. Step 4: Simplify right side
    622,712x = 1,851,749,424,100
  5. Step 5: Solve for x
    x = 1,851,749,424,100/622,712
  6. Step 6: Final answer
    x = 2,973,685.15

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.