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Finding the Fourth Proportional to 470,749.20, 706,123.80 and 281,792.40

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Solution

The fourth proportional to 470,749.20, 706,123.80 and 281,792.40 is: 422,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,749.20 : 706,123.80 = 281,792.40 : x
  2. Step 2: Convert to fraction form
    470,749.20/706,123.80 = 281,792.40/x
  3. Step 3: Cross multiply
    470,749.20x = 706,123.80 × 281,792.40
  4. Step 4: Simplify right side
    470,749.20x = 198,980,320,299.12
  5. Step 5: Solve for x
    x = 198,980,320,299.12/470,749.20
  6. Step 6: Final answer
    x = 422,688.60

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