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Finding the Third Proportional to 202,364 and 440,427

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Solution

The third proportional to 202,364 and 440,427 is: 958,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,364 : 440,427 = 440,427 : x
  2. Step 2: Convert to fraction form
    202,364/440,427 = 440,427/x
  3. Step 3: Cross multiply
    202,364x = 440,427 × 440,427
  4. Step 4: Simplify right side
    202,364x = 193,975,942,329
  5. Step 5: Solve for x
    x = 193,975,942,329/202,364
  6. Step 6: Final answer
    x = 958,549.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.