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Finding the Fourth Proportional to 577,072.43, 796,401.17 and 318,943.82

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Solution

The fourth proportional to 577,072.43, 796,401.17 and 318,943.82 is: 440,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,072.43 : 796,401.17 = 318,943.82 : x
  2. Step 2: Convert to fraction form
    577,072.43/796,401.17 = 318,943.82/x
  3. Step 3: Cross multiply
    577,072.43x = 796,401.17 × 318,943.82
  4. Step 4: Simplify right side
    577,072.43x = 254,007,228,227.62
  5. Step 5: Solve for x
    x = 254,007,228,227.62/577,072.43
  6. Step 6: Final answer
    x = 440,165.25

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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.