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Finding the Fourth Proportional to 700,845.88, 967,155.78 and 394,953.52

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Solution

The fourth proportional to 700,845.88, 967,155.78 and 394,953.52 is: 545,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,845.88 : 967,155.78 = 394,953.52 : x
  2. Step 2: Convert to fraction form
    700,845.88/967,155.78 = 394,953.52/x
  3. Step 3: Cross multiply
    700,845.88x = 967,155.78 × 394,953.52
  4. Step 4: Simplify right side
    700,845.88x = 381,981,579,699.35
  5. Step 5: Solve for x
    x = 381,981,579,699.35/700,845.88
  6. Step 6: Final answer
    x = 545,029.36

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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.