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Finding the Fourth Proportional to 366,913.70, 550,370.55 and 254,939.30

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Solution

The fourth proportional to 366,913.70, 550,370.55 and 254,939.30 is: 382,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,913.70 : 550,370.55 = 254,939.30 : x
  2. Step 2: Convert to fraction form
    366,913.70/550,370.55 = 254,939.30/x
  3. Step 3: Cross multiply
    366,913.70x = 550,370.55 × 254,939.30
  4. Step 4: Simplify right side
    366,913.70x = 140,311,082,757.62
  5. Step 5: Solve for x
    x = 140,311,082,757.62/366,913.70
  6. Step 6: Final answer
    x = 382,408.95

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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.