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Finding the Fourth Proportional to 455,930.20, 685,061.70 and 404,608.60

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Solution

The fourth proportional to 455,930.20, 685,061.70 and 404,608.60 is: 607,948.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,930.20 : 685,061.70 = 404,608.60 : x
  2. Step 2: Convert to fraction form
    455,930.20/685,061.70 = 404,608.60/x
  3. Step 3: Cross multiply
    455,930.20x = 685,061.70 × 404,608.60
  4. Step 4: Simplify right side
    455,930.20x = 277,181,855,350.62
  5. Step 5: Solve for x
    x = 277,181,855,350.62/455,930.20
  6. Step 6: Final answer
    x = 607,948.00

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