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Finding the Fourth Proportional to 531,808.20, 796,637.10 and 331,513.80

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Solution

The fourth proportional to 531,808.20, 796,637.10 and 331,513.80 is: 496,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,808.20 : 796,637.10 = 331,513.80 : x
  2. Step 2: Convert to fraction form
    531,808.20/796,637.10 = 331,513.80/x
  3. Step 3: Cross multiply
    531,808.20x = 796,637.10 × 331,513.80
  4. Step 4: Simplify right side
    531,808.20x = 264,096,192,241.98
  5. Step 5: Solve for x
    x = 264,096,192,241.98/531,808.20
  6. Step 6: Final answer
    x = 496,600.45

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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.