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Finding the Fourth Proportional to 804,549.13, 1,206,804.99 and 405,082.64

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Solution

The fourth proportional to 804,549.13, 1,206,804.99 and 405,082.64 is: 607,614.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,549.13 : 1,206,804.99 = 405,082.64 : x
  2. Step 2: Convert to fraction form
    804,549.13/1,206,804.99 = 405,082.64/x
  3. Step 3: Cross multiply
    804,549.13x = 1,206,804.99 × 405,082.64
  4. Step 4: Simplify right side
    804,549.13x = 488,855,751,314.37
  5. Step 5: Solve for x
    x = 488,855,751,314.37/804,549.13
  6. Step 6: Final answer
    x = 607,614.54

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