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Finding the Fourth Proportional to 680,216.40, 1,021,110.30 and 365,288.40

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Solution

The fourth proportional to 680,216.40, 1,021,110.30 and 365,288.40 is: 548,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,216.40 : 1,021,110.30 = 365,288.40 : x
  2. Step 2: Convert to fraction form
    680,216.40/1,021,110.30 = 365,288.40/x
  3. Step 3: Cross multiply
    680,216.40x = 1,021,110.30 × 365,288.40
  4. Step 4: Simplify right side
    680,216.40x = 372,999,747,710.52
  5. Step 5: Solve for x
    x = 372,999,747,710.52/680,216.40
  6. Step 6: Final answer
    x = 548,354.53

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