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Finding the Fourth Proportional to 318,857.45, 477,722.22 and 299,892.11

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Solution

The fourth proportional to 318,857.45, 477,722.22 and 299,892.11 is: 449,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,857.45 : 477,722.22 = 299,892.11 : x
  2. Step 2: Convert to fraction form
    318,857.45/477,722.22 = 299,892.11/x
  3. Step 3: Cross multiply
    318,857.45x = 477,722.22 × 299,892.11
  4. Step 4: Simplify right side
    318,857.45x = 143,265,124,549.68
  5. Step 5: Solve for x
    x = 143,265,124,549.68/318,857.45
  6. Step 6: Final answer
    x = 449,307.75

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