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Finding the Fourth Proportional to 635,987,568.90, 953,981,686.08 and 199,322,262.21

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Solution

The fourth proportional to 635,987,568.90, 953,981,686.08 and 199,322,262.21 is: 298,983,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,987,568.90 : 953,981,686.08 = 199,322,262.21 : x
  2. Step 2: Convert to fraction form
    635,987,568.90/953,981,686.08 = 199,322,262.21/x
  3. Step 3: Cross multiply
    635,987,568.90x = 953,981,686.08 × 199,322,262.21
  4. Step 4: Simplify right side
    635,987,568.90x = 190,149,787,776,375,680
  5. Step 5: Solve for x
    x = 190,149,787,776,375,680/635,987,568.90
  6. Step 6: Final answer
    x = 298,983,497.59

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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.