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Finding the Fourth Proportional to 576,930.29, 796,161.81 and 318,800.04

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Solution

The fourth proportional to 576,930.29, 796,161.81 and 318,800.04 is: 439,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,930.29 : 796,161.81 = 318,800.04 : x
  2. Step 2: Convert to fraction form
    576,930.29/796,161.81 = 318,800.04/x
  3. Step 3: Cross multiply
    576,930.29x = 796,161.81 × 318,800.04
  4. Step 4: Simplify right side
    576,930.29x = 253,816,416,874.47
  5. Step 5: Solve for x
    x = 253,816,416,874.47/576,930.29
  6. Step 6: Final answer
    x = 439,942.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.