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Finding the Fourth Proportional to 439,751.60, 659,627.40 and 395,428.40

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Solution

The fourth proportional to 439,751.60, 659,627.40 and 395,428.40 is: 593,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,751.60 : 659,627.40 = 395,428.40 : x
  2. Step 2: Convert to fraction form
    439,751.60/659,627.40 = 395,428.40/x
  3. Step 3: Cross multiply
    439,751.60x = 659,627.40 × 395,428.40
  4. Step 4: Simplify right side
    439,751.60x = 260,835,407,378.16
  5. Step 5: Solve for x
    x = 260,835,407,378.16/439,751.60
  6. Step 6: Final answer
    x = 593,142.60

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