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Finding the Fourth Proportional to 443,918.45, 666,351.53 and 191,323.59

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Solution

The fourth proportional to 443,918.45, 666,351.53 and 191,323.59 is: 287,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,918.45 : 666,351.53 = 191,323.59 : x
  2. Step 2: Convert to fraction form
    443,918.45/666,351.53 = 191,323.59/x
  3. Step 3: Cross multiply
    443,918.45x = 666,351.53 × 191,323.59
  4. Step 4: Simplify right side
    443,918.45x = 127,488,765,964.98
  5. Step 5: Solve for x
    x = 127,488,765,964.98/443,918.45
  6. Step 6: Final answer
    x = 287,189.61

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