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Finding the Fourth Proportional to 363,468.30, 545,202.45 and 347,138.70

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Solution

The fourth proportional to 363,468.30, 545,202.45 and 347,138.70 is: 520,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,468.30 : 545,202.45 = 347,138.70 : x
  2. Step 2: Convert to fraction form
    363,468.30/545,202.45 = 347,138.70/x
  3. Step 3: Cross multiply
    363,468.30x = 545,202.45 × 347,138.70
  4. Step 4: Simplify right side
    363,468.30x = 189,260,869,729.82
  5. Step 5: Solve for x
    x = 189,260,869,729.82/363,468.30
  6. Step 6: Final answer
    x = 520,708.05

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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.