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Finding the Fourth Proportional to 603,902.27, 833,403.78 and 331,990.94

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Solution

The fourth proportional to 603,902.27, 833,403.78 and 331,990.94 is: 458,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,902.27 : 833,403.78 = 331,990.94 : x
  2. Step 2: Convert to fraction form
    603,902.27/833,403.78 = 331,990.94/x
  3. Step 3: Cross multiply
    603,902.27x = 833,403.78 × 331,990.94
  4. Step 4: Simplify right side
    603,902.27x = 276,682,500,154.73
  5. Step 5: Solve for x
    x = 276,682,500,154.73/603,902.27
  6. Step 6: Final answer
    x = 458,157.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.