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Finding the Fourth Proportional to 363,906.20, 545,859.30 and 348,548.60

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Solution

The fourth proportional to 363,906.20, 545,859.30 and 348,548.60 is: 522,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,906.20 : 545,859.30 = 348,548.60 : x
  2. Step 2: Convert to fraction form
    363,906.20/545,859.30 = 348,548.60/x
  3. Step 3: Cross multiply
    363,906.20x = 545,859.30 × 348,548.60
  4. Step 4: Simplify right side
    363,906.20x = 190,258,494,811.98
  5. Step 5: Solve for x
    x = 190,258,494,811.98/363,906.20
  6. Step 6: Final answer
    x = 522,822.90

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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.