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Finding the Fourth Proportional to 531,817.20, 796,650.60 and 331,522.80

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Solution

The fourth proportional to 531,817.20, 796,650.60 and 331,522.80 is: 496,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,817.20 : 796,650.60 = 331,522.80 : x
  2. Step 2: Convert to fraction form
    531,817.20/796,650.60 = 331,522.80/x
  3. Step 3: Cross multiply
    531,817.20x = 796,650.60 × 331,522.80
  4. Step 4: Simplify right side
    531,817.20x = 264,107,837,533.68
  5. Step 5: Solve for x
    x = 264,107,837,533.68/531,817.20
  6. Step 6: Final answer
    x = 496,613.94

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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.