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Finding the Fourth Proportional to 789,797,486.39, 1,089,954,792 and 437,373,477.14

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Solution

The fourth proportional to 789,797,486.39, 1,089,954,792 and 437,373,477.14 is: 603,594,371.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,797,486.39 : 1,089,954,792 = 437,373,477.14 : x
  2. Step 2: Convert to fraction form
    789,797,486.39/1,089,954,792 = 437,373,477.14/x
  3. Step 3: Cross multiply
    789,797,486.39x = 1,089,954,792 × 437,373,477.14
  4. Step 4: Simplify right side
    789,797,486.39x = 476,717,317,296,995,648
  5. Step 5: Solve for x
    x = 476,717,317,296,995,648/789,797,486.39
  6. Step 6: Final answer
    x = 603,594,371.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.