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Finding the Third Proportional to 543,420.75 and 1,191,817.25

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Solution

The third proportional to 543,420.75 and 1,191,817.25 is: 2,613,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,420.75 : 1,191,817.25 = 1,191,817.25 : x
  2. Step 2: Convert to fraction form
    543,420.75/1,191,817.25 = 1,191,817.25/x
  3. Step 3: Cross multiply
    543,420.75x = 1,191,817.25 × 1,191,817.25
  4. Step 4: Simplify right side
    543,420.75x = 1,420,428,357,397.56
  5. Step 5: Solve for x
    x = 1,420,428,357,397.56/543,420.75
  6. Step 6: Final answer
    x = 2,613,864.78

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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.