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Finding the Fourth Proportional to 328,543.60, 492,815.40 and 222,255.40

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Solution

The fourth proportional to 328,543.60, 492,815.40 and 222,255.40 is: 333,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,543.60 : 492,815.40 = 222,255.40 : x
  2. Step 2: Convert to fraction form
    328,543.60/492,815.40 = 222,255.40/x
  3. Step 3: Cross multiply
    328,543.60x = 492,815.40 × 222,255.40
  4. Step 4: Simplify right side
    328,543.60x = 109,530,883,853.16
  5. Step 5: Solve for x
    x = 109,530,883,853.16/328,543.60
  6. Step 6: Final answer
    x = 333,383.10

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