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Finding the Fourth Proportional to 429,396.93, 643,114.36 and 204,914.99

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Solution

The fourth proportional to 429,396.93, 643,114.36 and 204,914.99 is: 306,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,396.93 : 643,114.36 = 204,914.99 : x
  2. Step 2: Convert to fraction form
    429,396.93/643,114.36 = 204,914.99/x
  3. Step 3: Cross multiply
    429,396.93x = 643,114.36 × 204,914.99
  4. Step 4: Simplify right side
    429,396.93x = 131,783,772,648.26
  5. Step 5: Solve for x
    x = 131,783,772,648.26/429,396.93
  6. Step 6: Final answer
    x = 306,904.32

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