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Finding the Third Proportional to 211,543 and 440,581.75

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Solution

The third proportional to 211,543 and 440,581.75 is: 917,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,543 : 440,581.75 = 440,581.75 : x
  2. Step 2: Convert to fraction form
    211,543/440,581.75 = 440,581.75/x
  3. Step 3: Cross multiply
    211,543x = 440,581.75 × 440,581.75
  4. Step 4: Simplify right side
    211,543x = 194,112,278,433.06
  5. Step 5: Solve for x
    x = 194,112,278,433.06/211,543
  6. Step 6: Final answer
    x = 917,601.99

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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.