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Finding the Fourth Proportional to 720,751,343.22, 1,081,017,778.51 and 196,161,324.30

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Solution

The fourth proportional to 720,751,343.22, 1,081,017,778.51 and 196,161,324.30 is: 294,212,256.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,751,343.22 : 1,081,017,778.51 = 196,161,324.30 : x
  2. Step 2: Convert to fraction form
    720,751,343.22/1,081,017,778.51 = 196,161,324.30/x
  3. Step 3: Cross multiply
    720,751,343.22x = 1,081,017,778.51 × 196,161,324.30
  4. Step 4: Simplify right side
    720,751,343.22x = 212,053,879,024,365,696
  5. Step 5: Solve for x
    x = 212,053,879,024,365,696/720,751,343.22
  6. Step 6: Final answer
    x = 294,212,256.44

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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.