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Finding the Fourth Proportional to 577,115.92, 796,006.92 and 405,072.28

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Solution

The fourth proportional to 577,115.92, 796,006.92 and 405,072.28 is: 558,709.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,115.92 : 796,006.92 = 405,072.28 : x
  2. Step 2: Convert to fraction form
    577,115.92/796,006.92 = 405,072.28/x
  3. Step 3: Cross multiply
    577,115.92x = 796,006.92 × 405,072.28
  4. Step 4: Simplify right side
    577,115.92x = 322,440,337,980.18
  5. Step 5: Solve for x
    x = 322,440,337,980.18/577,115.92
  6. Step 6: Final answer
    x = 558,709.83

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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.