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Finding the Fourth Proportional to 348,519.60, 522,088.20 and 207,860.40

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Solution

The fourth proportional to 348,519.60, 522,088.20 and 207,860.40 is: 311,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,519.60 : 522,088.20 = 207,860.40 : x
  2. Step 2: Convert to fraction form
    348,519.60/522,088.20 = 207,860.40/x
  3. Step 3: Cross multiply
    348,519.60x = 522,088.20 × 207,860.40
  4. Step 4: Simplify right side
    348,519.60x = 108,521,462,087.28
  5. Step 5: Solve for x
    x = 108,521,462,087.28/348,519.60
  6. Step 6: Final answer
    x = 311,378.36

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