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Finding the Fourth Proportional to 696,759.76, 961,542.93 and 394,953.76

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Solution

The fourth proportional to 696,759.76, 961,542.93 and 394,953.76 is: 545,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,759.76 : 961,542.93 = 394,953.76 : x
  2. Step 2: Convert to fraction form
    696,759.76/961,542.93 = 394,953.76/x
  3. Step 3: Cross multiply
    696,759.76x = 961,542.93 × 394,953.76
  4. Step 4: Simplify right side
    696,759.76x = 379,764,995,604.92
  5. Step 5: Solve for x
    x = 379,764,995,604.92/696,759.76
  6. Step 6: Final answer
    x = 545,044.39

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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.