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Finding the Fourth Proportional to 431,824.40, 647,621.40 and 151,312.40

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Solution

The fourth proportional to 431,824.40, 647,621.40 and 151,312.40 is: 226,928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,824.40 : 647,621.40 = 151,312.40 : x
  2. Step 2: Convert to fraction form
    431,824.40/647,621.40 = 151,312.40/x
  3. Step 3: Cross multiply
    431,824.40x = 647,621.40 × 151,312.40
  4. Step 4: Simplify right side
    431,824.40x = 97,993,148,325.36
  5. Step 5: Solve for x
    x = 97,993,148,325.36/431,824.40
  6. Step 6: Final answer
    x = 226,928.23

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