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Finding the Fourth Proportional to 444,991.46, 667,020.63 and 208,134.50

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Solution

The fourth proportional to 444,991.46, 667,020.63 and 208,134.50 is: 311,983.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,991.46 : 667,020.63 = 208,134.50 : x
  2. Step 2: Convert to fraction form
    444,991.46/667,020.63 = 208,134.50/x
  3. Step 3: Cross multiply
    444,991.46x = 667,020.63 × 208,134.50
  4. Step 4: Simplify right side
    444,991.46x = 138,830,005,314.74
  5. Step 5: Solve for x
    x = 138,830,005,314.74/444,991.46
  6. Step 6: Final answer
    x = 311,983.53

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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.