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Finding the Fourth Proportional to 494,518.88, 741,890.21 and 157,578.73

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Solution

The fourth proportional to 494,518.88, 741,890.21 and 157,578.73 is: 236,403.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,518.88 : 741,890.21 = 157,578.73 : x
  2. Step 2: Convert to fraction form
    494,518.88/741,890.21 = 157,578.73/x
  3. Step 3: Cross multiply
    494,518.88x = 741,890.21 × 157,578.73
  4. Step 4: Simplify right side
    494,518.88x = 116,906,114,448.61
  5. Step 5: Solve for x
    x = 116,906,114,448.61/494,518.88
  6. Step 6: Final answer
    x = 236,403.74

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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.