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Finding the Third Proportional to 317,824 and 471,238.50

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Solution

The third proportional to 317,824 and 471,238.50 is: 698,706.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,824 : 471,238.50 = 471,238.50 : x
  2. Step 2: Convert to fraction form
    317,824/471,238.50 = 471,238.50/x
  3. Step 3: Cross multiply
    317,824x = 471,238.50 × 471,238.50
  4. Step 4: Simplify right side
    317,824x = 222,065,723,882.25
  5. Step 5: Solve for x
    x = 222,065,723,882.25/317,824
  6. Step 6: Final answer
    x = 698,706.59

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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.