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Finding the Fourth Proportional to 399,555.78, 599,628.51 and 189,193.38

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Solution

The fourth proportional to 399,555.78, 599,628.51 and 189,193.38 is: 283,929.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,555.78 : 599,628.51 = 189,193.38 : x
  2. Step 2: Convert to fraction form
    399,555.78/599,628.51 = 189,193.38/x
  3. Step 3: Cross multiply
    399,555.78x = 599,628.51 × 189,193.38
  4. Step 4: Simplify right side
    399,555.78x = 113,445,744,551.26
  5. Step 5: Solve for x
    x = 113,445,744,551.26/399,555.78
  6. Step 6: Final answer
    x = 283,929.68

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