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Finding the Third Proportional to 317,813.25 and 471,221.25

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Solution

The third proportional to 317,813.25 and 471,221.25 is: 698,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,813.25 : 471,221.25 = 471,221.25 : x
  2. Step 2: Convert to fraction form
    317,813.25/471,221.25 = 471,221.25/x
  3. Step 3: Cross multiply
    317,813.25x = 471,221.25 × 471,221.25
  4. Step 4: Simplify right side
    317,813.25x = 222,049,466,451.56
  5. Step 5: Solve for x
    x = 222,049,466,451.56/317,813.25
  6. Step 6: Final answer
    x = 698,679.07

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.