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Finding the Fourth Proportional to 444,608.20, 666,458.70 and 219,622.60

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Solution

The fourth proportional to 444,608.20, 666,458.70 and 219,622.60 is: 329,209.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,608.20 : 666,458.70 = 219,622.60 : x
  2. Step 2: Convert to fraction form
    444,608.20/666,458.70 = 219,622.60/x
  3. Step 3: Cross multiply
    444,608.20x = 666,458.70 × 219,622.60
  4. Step 4: Simplify right side
    444,608.20x = 146,369,392,486.62
  5. Step 5: Solve for x
    x = 146,369,392,486.62/444,608.20
  6. Step 6: Final answer
    x = 329,209.84

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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.