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Finding the Fourth Proportional to 355,904.20, 533,078.70 and 276,394.60

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Solution

The fourth proportional to 355,904.20, 533,078.70 and 276,394.60 is: 413,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,904.20 : 533,078.70 = 276,394.60 : x
  2. Step 2: Convert to fraction form
    355,904.20/533,078.70 = 276,394.60/x
  3. Step 3: Cross multiply
    355,904.20x = 533,078.70 × 276,394.60
  4. Step 4: Simplify right side
    355,904.20x = 147,340,074,055.02
  5. Step 5: Solve for x
    x = 147,340,074,055.02/355,904.20
  6. Step 6: Final answer
    x = 413,988.02

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