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Finding the Fourth Proportional to 389,954.80, 547,117.70 and 389,954.80

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Solution

The fourth proportional to 389,954.80, 547,117.70 and 389,954.80 is: 547,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,954.80 : 547,117.70 = 389,954.80 : x
  2. Step 2: Convert to fraction form
    389,954.80/547,117.70 = 389,954.80/x
  3. Step 3: Cross multiply
    389,954.80x = 547,117.70 × 389,954.80
  4. Step 4: Simplify right side
    389,954.80x = 213,351,173,279.96
  5. Step 5: Solve for x
    x = 213,351,173,279.96/389,954.80
  6. Step 6: Final answer
    x = 547,117.70

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