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Finding the Fourth Proportional to 854,558.80, 1,281,036.30 and 322,437.40

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Solution

The fourth proportional to 854,558.80, 1,281,036.30 and 322,437.40 is: 483,353.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,558.80 : 1,281,036.30 = 322,437.40 : x
  2. Step 2: Convert to fraction form
    854,558.80/1,281,036.30 = 322,437.40/x
  3. Step 3: Cross multiply
    854,558.80x = 1,281,036.30 × 322,437.40
  4. Step 4: Simplify right side
    854,558.80x = 413,054,013,877.62
  5. Step 5: Solve for x
    x = 413,054,013,877.62/854,558.80
  6. Step 6: Final answer
    x = 483,353.53

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