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Finding the Third Proportional to 279,532.56 and 613,980

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Solution

The third proportional to 279,532.56 and 613,980 is: 1,348,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,532.56 : 613,980 = 613,980 : x
  2. Step 2: Convert to fraction form
    279,532.56/613,980 = 613,980/x
  3. Step 3: Cross multiply
    279,532.56x = 613,980 × 613,980
  4. Step 4: Simplify right side
    279,532.56x = 376,971,440,400
  5. Step 5: Solve for x
    x = 376,971,440,400/279,532.56
  6. Step 6: Final answer
    x = 1,348,577.92

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.