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Finding the Fourth Proportional to 484,396.60, 726,335.70 and 203,596.60

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Solution

The fourth proportional to 484,396.60, 726,335.70 and 203,596.60 is: 305,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,396.60 : 726,335.70 = 203,596.60 : x
  2. Step 2: Convert to fraction form
    484,396.60/726,335.70 = 203,596.60/x
  3. Step 3: Cross multiply
    484,396.60x = 726,335.70 × 203,596.60
  4. Step 4: Simplify right side
    484,396.60x = 147,879,478,978.62
  5. Step 5: Solve for x
    x = 147,879,478,978.62/484,396.60
  6. Step 6: Final answer
    x = 305,285.96

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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.