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Finding the Fourth Proportional to 3,203.76, 4,420.68 and 1,787.16

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Solution

The fourth proportional to 3,203.76, 4,420.68 and 1,787.16 is: 2,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,203.76 : 4,420.68 = 1,787.16 : x
  2. Step 2: Convert to fraction form
    3,203.76/4,420.68 = 1,787.16/x
  3. Step 3: Cross multiply
    3,203.76x = 4,420.68 × 1,787.16
  4. Step 4: Simplify right side
    3,203.76x = 7,900,462.47
  5. Step 5: Solve for x
    x = 7,900,462.47/3,203.76
  6. Step 6: Final answer
    x = 2,466.00

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