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Finding the Fourth Proportional to 603,930.20, 905,319.30 and 224,749.40

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Solution

The fourth proportional to 603,930.20, 905,319.30 and 224,749.40 is: 336,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,930.20 : 905,319.30 = 224,749.40 : x
  2. Step 2: Convert to fraction form
    603,930.20/905,319.30 = 224,749.40/x
  3. Step 3: Cross multiply
    603,930.20x = 905,319.30 × 224,749.40
  4. Step 4: Simplify right side
    603,930.20x = 203,469,969,483.42
  5. Step 5: Solve for x
    x = 203,469,969,483.42/603,930.20
  6. Step 6: Final answer
    x = 336,909.74

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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.