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Finding the Fourth Proportional to 700,908.39, 967,252.82 and 378,618.42

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Solution

The fourth proportional to 700,908.39, 967,252.82 and 378,618.42 is: 522,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,908.39 : 967,252.82 = 378,618.42 : x
  2. Step 2: Convert to fraction form
    700,908.39/967,252.82 = 378,618.42/x
  3. Step 3: Cross multiply
    700,908.39x = 967,252.82 × 378,618.42
  4. Step 4: Simplify right side
    700,908.39x = 366,219,732,555.85
  5. Step 5: Solve for x
    x = 366,219,732,555.85/700,908.39
  6. Step 6: Final answer
    x = 522,493.01

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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.