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Finding the Third Proportional to 144,408 and 316,716

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Solution

The third proportional to 144,408 and 316,716 is: 694,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,408 : 316,716 = 316,716 : x
  2. Step 2: Convert to fraction form
    144,408/316,716 = 316,716/x
  3. Step 3: Cross multiply
    144,408x = 316,716 × 316,716
  4. Step 4: Simplify right side
    144,408x = 100,309,024,656
  5. Step 5: Solve for x
    x = 100,309,024,656/144,408
  6. Step 6: Final answer
    x = 694,622.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.