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Finding the Fourth Proportional to 484,611.40, 726,830.70 and 306,800.20

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Solution

The fourth proportional to 484,611.40, 726,830.70 and 306,800.20 is: 460,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,611.40 : 726,830.70 = 306,800.20 : x
  2. Step 2: Convert to fraction form
    484,611.40/726,830.70 = 306,800.20/x
  3. Step 3: Cross multiply
    484,611.40x = 726,830.70 × 306,800.20
  4. Step 4: Simplify right side
    484,611.40x = 222,991,804,126.14
  5. Step 5: Solve for x
    x = 222,991,804,126.14/484,611.40
  6. Step 6: Final answer
    x = 460,145.60

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