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Finding the Fourth Proportional to 531,869.20, 796,728.60 and 331,574.80

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Solution

The fourth proportional to 531,869.20, 796,728.60 and 331,574.80 is: 496,691.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,869.20 : 796,728.60 = 331,574.80 : x
  2. Step 2: Convert to fraction form
    531,869.20/796,728.60 = 331,574.80/x
  3. Step 3: Cross multiply
    531,869.20x = 796,728.60 × 331,574.80
  4. Step 4: Simplify right side
    531,869.20x = 264,175,126,199.28
  5. Step 5: Solve for x
    x = 264,175,126,199.28/531,869.20
  6. Step 6: Final answer
    x = 496,691.91

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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.