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Finding the Fourth Proportional to 330,529.43, 495,794.31 and 218,183.39

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Solution

The fourth proportional to 330,529.43, 495,794.31 and 218,183.39 is: 327,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,529.43 : 495,794.31 = 218,183.39 : x
  2. Step 2: Convert to fraction form
    330,529.43/495,794.31 = 218,183.39/x
  3. Step 3: Cross multiply
    330,529.43x = 495,794.31 × 218,183.39
  4. Step 4: Simplify right side
    330,529.43x = 108,174,083,298.51
  5. Step 5: Solve for x
    x = 108,174,083,298.51/330,529.43
  6. Step 6: Final answer
    x = 327,275.19

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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.