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Finding the Fourth Proportional to 707,251.20, 1,060,876.80 and 286,540.80

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Solution

The fourth proportional to 707,251.20, 1,060,876.80 and 286,540.80 is: 429,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,251.20 : 1,060,876.80 = 286,540.80 : x
  2. Step 2: Convert to fraction form
    707,251.20/1,060,876.80 = 286,540.80/x
  3. Step 3: Cross multiply
    707,251.20x = 1,060,876.80 × 286,540.80
  4. Step 4: Simplify right side
    707,251.20x = 303,984,486,973.44
  5. Step 5: Solve for x
    x = 303,984,486,973.44/707,251.20
  6. Step 6: Final answer
    x = 429,811.20

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