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Finding the Fourth Proportional to 324,685.82, 487,028.73 and 196,627.92

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Solution

The fourth proportional to 324,685.82, 487,028.73 and 196,627.92 is: 294,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,685.82 : 487,028.73 = 196,627.92 : x
  2. Step 2: Convert to fraction form
    324,685.82/487,028.73 = 196,627.92/x
  3. Step 3: Cross multiply
    324,685.82x = 487,028.73 × 196,627.92
  4. Step 4: Simplify right side
    324,685.82x = 95,763,447,810.68
  5. Step 5: Solve for x
    x = 95,763,447,810.68/324,685.82
  6. Step 6: Final answer
    x = 294,941.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.