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Finding the Fourth Proportional to 577,296.15, 796,607.63 and 319,131.51

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Solution

The fourth proportional to 577,296.15, 796,607.63 and 319,131.51 is: 440,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,296.15 : 796,607.63 = 319,131.51 : x
  2. Step 2: Convert to fraction form
    577,296.15/796,607.63 = 319,131.51/x
  3. Step 3: Cross multiply
    577,296.15x = 796,607.63 × 319,131.51
  4. Step 4: Simplify right side
    577,296.15x = 254,222,591,856.38
  5. Step 5: Solve for x
    x = 254,222,591,856.38/577,296.15
  6. Step 6: Final answer
    x = 440,367.72

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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.