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Finding the Fourth Proportional to 442,487.48, 663,731.60 and 189,603.96

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Solution

The fourth proportional to 442,487.48, 663,731.60 and 189,603.96 is: 284,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,487.48 : 663,731.60 = 189,603.96 : x
  2. Step 2: Convert to fraction form
    442,487.48/663,731.60 = 189,603.96/x
  3. Step 3: Cross multiply
    442,487.48x = 663,731.60 × 189,603.96
  4. Step 4: Simplify right side
    442,487.48x = 125,846,139,737.14
  5. Step 5: Solve for x
    x = 125,846,139,737.14/442,487.48
  6. Step 6: Final answer
    x = 284,406.10

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