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Finding the Fourth Proportional to 444,990.46, 667,019.13 and 208,133.50

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Solution

The fourth proportional to 444,990.46, 667,019.13 and 208,133.50 is: 311,982.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,990.46 : 667,019.13 = 208,133.50 : x
  2. Step 2: Convert to fraction form
    444,990.46/667,019.13 = 208,133.50/x
  3. Step 3: Cross multiply
    444,990.46x = 667,019.13 × 208,133.50
  4. Step 4: Simplify right side
    444,990.46x = 138,829,026,093.86
  5. Step 5: Solve for x
    x = 138,829,026,093.86/444,990.46
  6. Step 6: Final answer
    x = 311,982.03

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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.