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Finding the Fourth Proportional to 444,660.35, 666,991.44 and 208,169.11

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Solution

The fourth proportional to 444,660.35, 666,991.44 and 208,169.11 is: 312,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,660.35 : 666,991.44 = 208,169.11 : x
  2. Step 2: Convert to fraction form
    444,660.35/666,991.44 = 208,169.11/x
  3. Step 3: Cross multiply
    444,660.35x = 666,991.44 × 208,169.11
  4. Step 4: Simplify right side
    444,660.35x = 138,847,012,774.94
  5. Step 5: Solve for x
    x = 138,847,012,774.94/444,660.35
  6. Step 6: Final answer
    x = 312,254.09

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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.