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Finding the Fourth Proportional to 444,563.40, 666,355.86 and 219,590.76

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Solution

The fourth proportional to 444,563.40, 666,355.86 and 219,590.76 is: 329,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,563.40 : 666,355.86 = 219,590.76 : x
  2. Step 2: Convert to fraction form
    444,563.40/666,355.86 = 219,590.76/x
  3. Step 3: Cross multiply
    444,563.40x = 666,355.86 × 219,590.76
  4. Step 4: Simplify right side
    444,563.40x = 146,325,589,727.85
  5. Step 5: Solve for x
    x = 146,325,589,727.85/444,563.40
  6. Step 6: Final answer
    x = 329,144.48

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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.