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Finding the Fourth Proportional to 404,234.80, 605,477.40 and 217,027.60

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Solution

The fourth proportional to 404,234.80, 605,477.40 and 217,027.60 is: 325,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,234.80 : 605,477.40 = 217,027.60 : x
  2. Step 2: Convert to fraction form
    404,234.80/605,477.40 = 217,027.60/x
  3. Step 3: Cross multiply
    404,234.80x = 605,477.40 × 217,027.60
  4. Step 4: Simplify right side
    404,234.80x = 131,405,306,976.24
  5. Step 5: Solve for x
    x = 131,405,306,976.24/404,234.80
  6. Step 6: Final answer
    x = 325,071.73

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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.