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Finding the Fourth Proportional to 545,906.20, 818,859.30 and 335,662.60

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Solution

The fourth proportional to 545,906.20, 818,859.30 and 335,662.60 is: 503,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,906.20 : 818,859.30 = 335,662.60 : x
  2. Step 2: Convert to fraction form
    545,906.20/818,859.30 = 335,662.60/x
  3. Step 3: Cross multiply
    545,906.20x = 818,859.30 × 335,662.60
  4. Step 4: Simplify right side
    545,906.20x = 274,860,441,672.18
  5. Step 5: Solve for x
    x = 274,860,441,672.18/545,906.20
  6. Step 6: Final answer
    x = 503,493.90

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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.