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Finding the Third Proportional to 418,248 and 631,296

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Solution

The third proportional to 418,248 and 631,296 is: 952,866.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,248 : 631,296 = 631,296 : x
  2. Step 2: Convert to fraction form
    418,248/631,296 = 631,296/x
  3. Step 3: Cross multiply
    418,248x = 631,296 × 631,296
  4. Step 4: Simplify right side
    418,248x = 398,534,639,616
  5. Step 5: Solve for x
    x = 398,534,639,616/418,248
  6. Step 6: Final answer
    x = 952,866.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.