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Finding the Fourth Proportional to 603,904.57, 833,391 and 331,989.98

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Solution

The fourth proportional to 603,904.57, 833,391 and 331,989.98 is: 458,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,904.57 : 833,391 = 331,989.98 : x
  2. Step 2: Convert to fraction form
    603,904.57/833,391 = 331,989.98/x
  3. Step 3: Cross multiply
    603,904.57x = 833,391 × 331,989.98
  4. Step 4: Simplify right side
    603,904.57x = 276,677,463,505.66
  5. Step 5: Solve for x
    x = 276,677,463,505.66/603,904.57
  6. Step 6: Final answer
    x = 458,147.66

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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.