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Finding the Fourth Proportional to 444,080.40, 665,355.15 and 206,936.70

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Solution

The fourth proportional to 444,080.40, 665,355.15 and 206,936.70 is: 310,048.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,080.40 : 665,355.15 = 206,936.70 : x
  2. Step 2: Convert to fraction form
    444,080.40/665,355.15 = 206,936.70/x
  3. Step 3: Cross multiply
    444,080.40x = 665,355.15 × 206,936.70
  4. Step 4: Simplify right side
    444,080.40x = 137,686,399,069.01
  5. Step 5: Solve for x
    x = 137,686,399,069.01/444,080.40
  6. Step 6: Final answer
    x = 310,048.36

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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.