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Finding the Fourth Proportional to 577,299.15, 796,611.77 and 319,134.51

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Solution

The fourth proportional to 577,299.15, 796,611.77 and 319,134.51 is: 440,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,299.15 : 796,611.77 = 319,134.51 : x
  2. Step 2: Convert to fraction form
    577,299.15/796,611.77 = 319,134.51/x
  3. Step 3: Cross multiply
    577,299.15x = 796,611.77 × 319,134.51
  4. Step 4: Simplify right side
    577,299.15x = 254,226,306,879.18
  5. Step 5: Solve for x
    x = 254,226,306,879.18/577,299.15
  6. Step 6: Final answer
    x = 440,371.87

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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.