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Finding the Fourth Proportional to 720,751,344.22, 1,081,017,780.01 and 196,161,325.30

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Solution

The fourth proportional to 720,751,344.22, 1,081,017,780.01 and 196,161,325.30 is: 294,212,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,751,344.22 : 1,081,017,780.01 = 196,161,325.30 : x
  2. Step 2: Convert to fraction form
    720,751,344.22/1,081,017,780.01 = 196,161,325.30/x
  3. Step 3: Cross multiply
    720,751,344.22x = 1,081,017,780.01 × 196,161,325.30
  4. Step 4: Simplify right side
    720,751,344.22x = 212,053,880,399,625,472
  5. Step 5: Solve for x
    x = 212,053,880,399,625,472/720,751,344.22
  6. Step 6: Final answer
    x = 294,212,257.94

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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.