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Finding the Fourth Proportional to 341,288.25, 511,533.77 and 256,776.90

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Solution

The fourth proportional to 341,288.25, 511,533.77 and 256,776.90 is: 384,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,288.25 : 511,533.77 = 256,776.90 : x
  2. Step 2: Convert to fraction form
    341,288.25/511,533.77 = 256,776.90/x
  3. Step 3: Cross multiply
    341,288.25x = 511,533.77 × 256,776.90
  4. Step 4: Simplify right side
    341,288.25x = 131,350,054,422.03
  5. Step 5: Solve for x
    x = 131,350,054,422.03/341,288.25
  6. Step 6: Final answer
    x = 384,865.45

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