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Finding the Fourth Proportional to 496,475.73, 685,031.99 and 324,645.57

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Solution

The fourth proportional to 496,475.73, 685,031.99 and 324,645.57 is: 447,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,475.73 : 685,031.99 = 324,645.57 : x
  2. Step 2: Convert to fraction form
    496,475.73/685,031.99 = 324,645.57/x
  3. Step 3: Cross multiply
    496,475.73x = 685,031.99 × 324,645.57
  4. Step 4: Simplify right side
    496,475.73x = 222,392,599,238.56
  5. Step 5: Solve for x
    x = 222,392,599,238.56/496,475.73
  6. Step 6: Final answer
    x = 447,942.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.