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Finding the Fourth Proportional to 505,264.02, 697,239.86 and 287,452.18

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Solution

The fourth proportional to 505,264.02, 697,239.86 and 287,452.18 is: 396,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,264.02 : 697,239.86 = 287,452.18 : x
  2. Step 2: Convert to fraction form
    505,264.02/697,239.86 = 287,452.18/x
  3. Step 3: Cross multiply
    505,264.02x = 697,239.86 × 287,452.18
  4. Step 4: Simplify right side
    505,264.02x = 200,423,117,739.90
  5. Step 5: Solve for x
    x = 200,423,117,739.90/505,264.02
  6. Step 6: Final answer
    x = 396,670.08

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