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Finding the Third Proportional to 267,220.74 and 556,555.90

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Solution

The third proportional to 267,220.74 and 556,555.90 is: 1,159,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,220.74 : 556,555.90 = 556,555.90 : x
  2. Step 2: Convert to fraction form
    267,220.74/556,555.90 = 556,555.90/x
  3. Step 3: Cross multiply
    267,220.74x = 556,555.90 × 556,555.90
  4. Step 4: Simplify right side
    267,220.74x = 309,754,474,607.72
  5. Step 5: Solve for x
    x = 309,754,474,607.72/267,220.74
  6. Step 6: Final answer
    x = 1,159,170.78

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.