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Finding the Fourth Proportional to 554,356.40, 831,923.40 and 355,161.20

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Solution

The fourth proportional to 554,356.40, 831,923.40 and 355,161.20 is: 532,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,356.40 : 831,923.40 = 355,161.20 : x
  2. Step 2: Convert to fraction form
    554,356.40/831,923.40 = 355,161.20/x
  3. Step 3: Cross multiply
    554,356.40x = 831,923.40 × 355,161.20
  4. Step 4: Simplify right side
    554,356.40x = 295,466,913,052.08
  5. Step 5: Solve for x
    x = 295,466,913,052.08/554,356.40
  6. Step 6: Final answer
    x = 532,990.89

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