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Finding the Fourth Proportional to 608,018,694.39, 839,067,034.65 and 329,560,406.55

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Solution

The fourth proportional to 608,018,694.39, 839,067,034.65 and 329,560,406.55 is: 454,794,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,018,694.39 : 839,067,034.65 = 329,560,406.55 : x
  2. Step 2: Convert to fraction form
    608,018,694.39/839,067,034.65 = 329,560,406.55/x
  3. Step 3: Cross multiply
    608,018,694.39x = 839,067,034.65 × 329,560,406.55
  4. Step 4: Simplify right side
    608,018,694.39x = 276,523,273,062,576,544
  5. Step 5: Solve for x
    x = 276,523,273,062,576,544/608,018,694.39
  6. Step 6: Final answer
    x = 454,794,031.19

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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.