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Finding the Fourth Proportional to 577,257.47, 796,639.93 and 322,608.66

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Solution

The fourth proportional to 577,257.47, 796,639.93 and 322,608.66 is: 445,213.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,257.47 : 796,639.93 = 322,608.66 : x
  2. Step 2: Convert to fraction form
    577,257.47/796,639.93 = 322,608.66/x
  3. Step 3: Cross multiply
    577,257.47x = 796,639.93 × 322,608.66
  4. Step 4: Simplify right side
    577,257.47x = 257,002,936,525.87
  5. Step 5: Solve for x
    x = 257,002,936,525.87/577,257.47
  6. Step 6: Final answer
    x = 445,213.71

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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.