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Finding the Fourth Proportional to 444,003.40, 665,239.65 and 206,859.70

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Solution

The fourth proportional to 444,003.40, 665,239.65 and 206,859.70 is: 309,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,003.40 : 665,239.65 = 206,859.70 : x
  2. Step 2: Convert to fraction form
    444,003.40/665,239.65 = 206,859.70/x
  3. Step 3: Cross multiply
    444,003.40x = 665,239.65 × 206,859.70
  4. Step 4: Simplify right side
    444,003.40x = 137,611,274,427.11
  5. Step 5: Solve for x
    x = 137,611,274,427.11/444,003.40
  6. Step 6: Final answer
    x = 309,932.93

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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.