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Finding the Fourth Proportional to 330,529.15, 495,793.88 and 218,183.11

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Solution

The fourth proportional to 330,529.15, 495,793.88 and 218,183.11 is: 327,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,529.15 : 495,793.88 = 218,183.11 : x
  2. Step 2: Convert to fraction form
    330,529.15/495,793.88 = 218,183.11/x
  3. Step 3: Cross multiply
    330,529.15x = 495,793.88 × 218,183.11
  4. Step 4: Simplify right side
    330,529.15x = 108,173,849,963.34
  5. Step 5: Solve for x
    x = 108,173,849,963.34/330,529.15
  6. Step 6: Final answer
    x = 327,274.77

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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.