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Finding the Fourth Proportional to 620,524.47, 931,067.41 and 316,761.71

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Solution

The fourth proportional to 620,524.47, 931,067.41 and 316,761.71 is: 475,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,524.47 : 931,067.41 = 316,761.71 : x
  2. Step 2: Convert to fraction form
    620,524.47/931,067.41 = 316,761.71/x
  3. Step 3: Cross multiply
    620,524.47x = 931,067.41 × 316,761.71
  4. Step 4: Simplify right side
    620,524.47x = 294,926,504,916.87
  5. Step 5: Solve for x
    x = 294,926,504,916.87/620,524.47
  6. Step 6: Final answer
    x = 475,285.86

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