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Finding the Fourth Proportional to 371,859.60, 513,272.66 and 218,986.47

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Solution

The fourth proportional to 371,859.60, 513,272.66 and 218,986.47 is: 302,263.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,859.60 : 513,272.66 = 218,986.47 : x
  2. Step 2: Convert to fraction form
    371,859.60/513,272.66 = 218,986.47/x
  3. Step 3: Cross multiply
    371,859.60x = 513,272.66 × 218,986.47
  4. Step 4: Simplify right side
    371,859.60x = 112,399,766,865.98
  5. Step 5: Solve for x
    x = 112,399,766,865.98/371,859.60
  6. Step 6: Final answer
    x = 302,263.99

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