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Finding the Fourth Proportional to 635,653,258.98, 952,965,350.18 and 198,729,040.82

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Solution

The fourth proportional to 635,653,258.98, 952,965,350.18 and 198,729,040.82 is: 297,932,697.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,653,258.98 : 952,965,350.18 = 198,729,040.82 : x
  2. Step 2: Convert to fraction form
    635,653,258.98/952,965,350.18 = 198,729,040.82/x
  3. Step 3: Cross multiply
    635,653,258.98x = 952,965,350.18 × 198,729,040.82
  4. Step 4: Simplify right side
    635,653,258.98x = 189,381,889,975,966,784
  5. Step 5: Solve for x
    x = 189,381,889,975,966,784/635,653,258.98
  6. Step 6: Final answer
    x = 297,932,697.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.