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Finding the Fourth Proportional to 337,405.20, 505,524.60 and 219,015.60

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Solution

The fourth proportional to 337,405.20, 505,524.60 and 219,015.60 is: 328,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,405.20 : 505,524.60 = 219,015.60 : x
  2. Step 2: Convert to fraction form
    337,405.20/505,524.60 = 219,015.60/x
  3. Step 3: Cross multiply
    337,405.20x = 505,524.60 × 219,015.60
  4. Step 4: Simplify right side
    337,405.20x = 110,717,773,583.76
  5. Step 5: Solve for x
    x = 110,717,773,583.76/337,405.20
  6. Step 6: Final answer
    x = 328,144.83

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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.