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Finding the Fourth Proportional to 577,053.54, 796,309.11 and 318,917.15

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Solution

The fourth proportional to 577,053.54, 796,309.11 and 318,917.15 is: 440,091.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,053.54 : 796,309.11 = 318,917.15 : x
  2. Step 2: Convert to fraction form
    577,053.54/796,309.11 = 318,917.15/x
  3. Step 3: Cross multiply
    577,053.54x = 796,309.11 × 318,917.15
  4. Step 4: Simplify right side
    577,053.54x = 253,956,632,230.28
  5. Step 5: Solve for x
    x = 253,956,632,230.28/577,053.54
  6. Step 6: Final answer
    x = 440,091.97

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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.