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Finding the Fourth Proportional to 577,497.29, 796,951.56 and 319,360.90

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Solution

The fourth proportional to 577,497.29, 796,951.56 and 319,360.90 is: 440,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,497.29 : 796,951.56 = 319,360.90 : x
  2. Step 2: Convert to fraction form
    577,497.29/796,951.56 = 319,360.90/x
  3. Step 3: Cross multiply
    577,497.29x = 796,951.56 × 319,360.90
  4. Step 4: Simplify right side
    577,497.29x = 254,515,167,458.00
  5. Step 5: Solve for x
    x = 254,515,167,458.00/577,497.29
  6. Step 6: Final answer
    x = 440,720.97

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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.