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Finding the Fourth Proportional to 403,396.75, 556,839.81 and 317,130.67

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Solution

The fourth proportional to 403,396.75, 556,839.81 and 317,130.67 is: 437,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,396.75 : 556,839.81 = 317,130.67 : x
  2. Step 2: Convert to fraction form
    403,396.75/556,839.81 = 317,130.67/x
  3. Step 3: Cross multiply
    403,396.75x = 556,839.81 × 317,130.67
  4. Step 4: Simplify right side
    403,396.75x = 176,590,982,027.97
  5. Step 5: Solve for x
    x = 176,590,982,027.97/403,396.75
  6. Step 6: Final answer
    x = 437,760.05

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