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Finding the Fourth Proportional to 444,661.40, 667,089.30 and 220,129.40

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Solution

The fourth proportional to 444,661.40, 667,089.30 and 220,129.40 is: 330,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,661.40 : 667,089.30 = 220,129.40 : x
  2. Step 2: Convert to fraction form
    444,661.40/667,089.30 = 220,129.40/x
  3. Step 3: Cross multiply
    444,661.40x = 667,089.30 × 220,129.40
  4. Step 4: Simplify right side
    444,661.40x = 146,845,967,355.42
  5. Step 5: Solve for x
    x = 146,845,967,355.42/444,661.40
  6. Step 6: Final answer
    x = 330,242.22

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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.