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Finding the Third Proportional to 318,288 and 700,544

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Solution

The third proportional to 318,288 and 700,544 is: 1,541,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,288 : 700,544 = 700,544 : x
  2. Step 2: Convert to fraction form
    318,288/700,544 = 700,544/x
  3. Step 3: Cross multiply
    318,288x = 700,544 × 700,544
  4. Step 4: Simplify right side
    318,288x = 490,761,895,936
  5. Step 5: Solve for x
    x = 490,761,895,936/318,288
  6. Step 6: Final answer
    x = 1,541,879.98

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Why These Related Problems?

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