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Finding the Fourth Proportional to 603,910.20, 905,289.30 and 224,729.40

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Solution

The fourth proportional to 603,910.20, 905,289.30 and 224,729.40 is: 336,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,910.20 : 905,289.30 = 224,729.40 : x
  2. Step 2: Convert to fraction form
    603,910.20/905,289.30 = 224,729.40/x
  3. Step 3: Cross multiply
    603,910.20x = 905,289.30 × 224,729.40
  4. Step 4: Simplify right side
    603,910.20x = 203,445,121,215.42
  5. Step 5: Solve for x
    x = 203,445,121,215.42/603,910.20
  6. Step 6: Final answer
    x = 336,879.76

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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.