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Finding the Fourth Proportional to 368,998.80, 553,498.20 and 362,000.40

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Solution

The fourth proportional to 368,998.80, 553,498.20 and 362,000.40 is: 543,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,998.80 : 553,498.20 = 362,000.40 : x
  2. Step 2: Convert to fraction form
    368,998.80/553,498.20 = 362,000.40/x
  3. Step 3: Cross multiply
    368,998.80x = 553,498.20 × 362,000.40
  4. Step 4: Simplify right side
    368,998.80x = 200,366,569,799.28
  5. Step 5: Solve for x
    x = 200,366,569,799.28/368,998.80
  6. Step 6: Final answer
    x = 543,000.60

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