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Finding the Fourth Proportional to 275,309.70, 412,964.55 and 246,441.30

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Solution

The fourth proportional to 275,309.70, 412,964.55 and 246,441.30 is: 369,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,309.70 : 412,964.55 = 246,441.30 : x
  2. Step 2: Convert to fraction form
    275,309.70/412,964.55 = 246,441.30/x
  3. Step 3: Cross multiply
    275,309.70x = 412,964.55 × 246,441.30
  4. Step 4: Simplify right side
    275,309.70x = 101,771,520,555.92
  5. Step 5: Solve for x
    x = 101,771,520,555.92/275,309.70
  6. Step 6: Final answer
    x = 369,661.95

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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.