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Finding the Fourth Proportional to 324,687.51, 487,031.27 and 196,629.60

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Solution

The fourth proportional to 324,687.51, 487,031.27 and 196,629.60 is: 294,944.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,687.51 : 487,031.27 = 196,629.60 : x
  2. Step 2: Convert to fraction form
    324,687.51/487,031.27 = 196,629.60/x
  3. Step 3: Cross multiply
    324,687.51x = 487,031.27 × 196,629.60
  4. Step 4: Simplify right side
    324,687.51x = 95,764,764,650.81
  5. Step 5: Solve for x
    x = 95,764,764,650.81/324,687.51
  6. Step 6: Final answer
    x = 294,944.41

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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.