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Finding the Fourth Proportional to 275,792.40, 413,688.60 and 205,808.40

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Solution

The fourth proportional to 275,792.40, 413,688.60 and 205,808.40 is: 308,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,792.40 : 413,688.60 = 205,808.40 : x
  2. Step 2: Convert to fraction form
    275,792.40/413,688.60 = 205,808.40/x
  3. Step 3: Cross multiply
    275,792.40x = 413,688.60 × 205,808.40
  4. Step 4: Simplify right side
    275,792.40x = 85,140,588,864.24
  5. Step 5: Solve for x
    x = 85,140,588,864.24/275,792.40
  6. Step 6: Final answer
    x = 308,712.60

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