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Finding the Fourth Proportional to 553,690.20, 830,535.30 and 548,441.40

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Solution

The fourth proportional to 553,690.20, 830,535.30 and 548,441.40 is: 822,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,690.20 : 830,535.30 = 548,441.40 : x
  2. Step 2: Convert to fraction form
    553,690.20/830,535.30 = 548,441.40/x
  3. Step 3: Cross multiply
    553,690.20x = 830,535.30 × 548,441.40
  4. Step 4: Simplify right side
    553,690.20x = 455,499,942,681.42
  5. Step 5: Solve for x
    x = 455,499,942,681.42/553,690.20
  6. Step 6: Final answer
    x = 822,662.10

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