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Finding the Fourth Proportional to 405,678.34, 608,816.48 and 192,446.92

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Solution

The fourth proportional to 405,678.34, 608,816.48 and 192,446.92 is: 288,812.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,678.34 : 608,816.48 = 192,446.92 : x
  2. Step 2: Convert to fraction form
    405,678.34/608,816.48 = 192,446.92/x
  3. Step 3: Cross multiply
    405,678.34x = 608,816.48 × 192,446.92
  4. Step 4: Simplify right side
    405,678.34x = 117,164,856,421.24
  5. Step 5: Solve for x
    x = 117,164,856,421.24/405,678.34
  6. Step 6: Final answer
    x = 288,812.21

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