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Finding the Fourth Proportional to 603,909.70, 905,288.55 and 224,728.90

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Solution

The fourth proportional to 603,909.70, 905,288.55 and 224,728.90 is: 336,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,909.70 : 905,288.55 = 224,728.90 : x
  2. Step 2: Convert to fraction form
    603,909.70/905,288.55 = 224,728.90/x
  3. Step 3: Cross multiply
    603,909.70x = 905,288.55 × 224,728.90
  4. Step 4: Simplify right side
    603,909.70x = 203,444,500,024.10
  5. Step 5: Solve for x
    x = 203,444,500,024.10/603,909.70
  6. Step 6: Final answer
    x = 336,879.01

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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.