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Finding the Third Proportional to 356,662 and 554,041

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Solution

The third proportional to 356,662 and 554,041 is: 860,650.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,662 : 554,041 = 554,041 : x
  2. Step 2: Convert to fraction form
    356,662/554,041 = 554,041/x
  3. Step 3: Cross multiply
    356,662x = 554,041 × 554,041
  4. Step 4: Simplify right side
    356,662x = 306,961,429,681
  5. Step 5: Solve for x
    x = 306,961,429,681/356,662
  6. Step 6: Final answer
    x = 860,650.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.