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Finding the Fourth Proportional to 978,556.95, 1,350,408.14 and 570,579.99

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Solution

The fourth proportional to 978,556.95, 1,350,408.14 and 570,579.99 is: 787,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,556.95 : 1,350,408.14 = 570,579.99 : x
  2. Step 2: Convert to fraction form
    978,556.95/1,350,408.14 = 570,579.99/x
  3. Step 3: Cross multiply
    978,556.95x = 1,350,408.14 × 570,579.99
  4. Step 4: Simplify right side
    978,556.95x = 770,515,863,017.12
  5. Step 5: Solve for x
    x = 770,515,863,017.12/978,556.95
  6. Step 6: Final answer
    x = 787,400.12

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