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Finding the Fourth Proportional to 463,669,994.90, 695,504,992.35 and 428,634,449.30

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Solution

The fourth proportional to 463,669,994.90, 695,504,992.35 and 428,634,449.30 is: 642,951,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,669,994.90 : 695,504,992.35 = 428,634,449.30 : x
  2. Step 2: Convert to fraction form
    463,669,994.90/695,504,992.35 = 428,634,449.30/x
  3. Step 3: Cross multiply
    463,669,994.90x = 695,504,992.35 × 428,634,449.30
  4. Step 4: Simplify right side
    463,669,994.90x = 298,117,399,381,342,976
  5. Step 5: Solve for x
    x = 298,117,399,381,342,976/463,669,994.90
  6. Step 6: Final answer
    x = 642,951,673.95

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