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Finding the Fourth Proportional to 498,419.70, 747,556.65 and 143,396.70

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Solution

The fourth proportional to 498,419.70, 747,556.65 and 143,396.70 is: 215,074.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,419.70 : 747,556.65 = 143,396.70 : x
  2. Step 2: Convert to fraction form
    498,419.70/747,556.65 = 143,396.70/x
  3. Step 3: Cross multiply
    498,419.70x = 747,556.65 × 143,396.70
  4. Step 4: Simplify right side
    498,419.70x = 107,197,156,673.06
  5. Step 5: Solve for x
    x = 107,197,156,673.06/498,419.70
  6. Step 6: Final answer
    x = 215,074.08

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