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Finding the Fourth Proportional to 366,961.30, 550,441.95 and 330,219.70

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Solution

The fourth proportional to 366,961.30, 550,441.95 and 330,219.70 is: 495,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,961.30 : 550,441.95 = 330,219.70 : x
  2. Step 2: Convert to fraction form
    366,961.30/550,441.95 = 330,219.70/x
  3. Step 3: Cross multiply
    366,961.30x = 550,441.95 × 330,219.70
  4. Step 4: Simplify right side
    366,961.30x = 181,766,775,596.42
  5. Step 5: Solve for x
    x = 181,766,775,596.42/366,961.30
  6. Step 6: Final answer
    x = 495,329.55

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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.