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Finding the Fourth Proportional to 635,987,572.90, 953,981,692.08 and 199,322,266.22

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Solution

The fourth proportional to 635,987,572.90, 953,981,692.08 and 199,322,266.22 is: 298,983,503.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,987,572.90 : 953,981,692.08 = 199,322,266.22 : x
  2. Step 2: Convert to fraction form
    635,987,572.90/953,981,692.08 = 199,322,266.22/x
  3. Step 3: Cross multiply
    635,987,572.90x = 953,981,692.08 × 199,322,266.22
  4. Step 4: Simplify right side
    635,987,572.90x = 190,149,792,797,775,840
  5. Step 5: Solve for x
    x = 190,149,792,797,775,840/635,987,572.90
  6. Step 6: Final answer
    x = 298,983,503.61

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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.