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Finding the Fourth Proportional to 706,620.48, 974,814.60 and 419,977.68

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Solution

The fourth proportional to 706,620.48, 974,814.60 and 419,977.68 is: 579,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,620.48 : 974,814.60 = 419,977.68 : x
  2. Step 2: Convert to fraction form
    706,620.48/974,814.60 = 419,977.68/x
  3. Step 3: Cross multiply
    706,620.48x = 974,814.60 × 419,977.68
  4. Step 4: Simplify right side
    706,620.48x = 409,400,374,138.13
  5. Step 5: Solve for x
    x = 409,400,374,138.13/706,620.48
  6. Step 6: Final answer
    x = 579,378.02

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