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Finding the Fourth Proportional to 340,865.60, 511,298.40 and 193,409.60

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Solution

The fourth proportional to 340,865.60, 511,298.40 and 193,409.60 is: 290,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,865.60 : 511,298.40 = 193,409.60 : x
  2. Step 2: Convert to fraction form
    340,865.60/511,298.40 = 193,409.60/x
  3. Step 3: Cross multiply
    340,865.60x = 511,298.40 × 193,409.60
  4. Step 4: Simplify right side
    340,865.60x = 98,890,019,024.64
  5. Step 5: Solve for x
    x = 98,890,019,024.64/340,865.60
  6. Step 6: Final answer
    x = 290,114.40

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