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Finding the Fourth Proportional to 393,311.60, 589,092.60 and 323,327.60

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Solution

The fourth proportional to 393,311.60, 589,092.60 and 323,327.60 is: 484,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,311.60 : 589,092.60 = 323,327.60 : x
  2. Step 2: Convert to fraction form
    393,311.60/589,092.60 = 323,327.60/x
  3. Step 3: Cross multiply
    393,311.60x = 589,092.60 × 323,327.60
  4. Step 4: Simplify right side
    393,311.60x = 190,469,896,535.76
  5. Step 5: Solve for x
    x = 190,469,896,535.76/393,311.60
  6. Step 6: Final answer
    x = 484,272.26

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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.