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Finding the Fourth Proportional to 577,339.52, 796,694.45 and 319,196.22

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Solution

The fourth proportional to 577,339.52, 796,694.45 and 319,196.22 is: 440,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,339.52 : 796,694.45 = 319,196.22 : x
  2. Step 2: Convert to fraction form
    577,339.52/796,694.45 = 319,196.22/x
  3. Step 3: Cross multiply
    577,339.52x = 796,694.45 × 319,196.22
  4. Step 4: Simplify right side
    577,339.52x = 254,301,855,040.97
  5. Step 5: Solve for x
    x = 254,301,855,040.97/577,339.52
  6. Step 6: Final answer
    x = 440,471.93

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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.