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Finding the Fourth Proportional to 455,727.20, 683,590.80 and 140,183.60

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Solution

The fourth proportional to 455,727.20, 683,590.80 and 140,183.60 is: 210,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,727.20 : 683,590.80 = 140,183.60 : x
  2. Step 2: Convert to fraction form
    455,727.20/683,590.80 = 140,183.60/x
  3. Step 3: Cross multiply
    455,727.20x = 683,590.80 × 140,183.60
  4. Step 4: Simplify right side
    455,727.20x = 95,828,219,270.88
  5. Step 5: Solve for x
    x = 95,828,219,270.88/455,727.20
  6. Step 6: Final answer
    x = 210,275.40

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