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Finding the Fourth Proportional to 479,988.60, 662,380.11 and 265,143.66

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Solution

The fourth proportional to 479,988.60, 662,380.11 and 265,143.66 is: 365,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,988.60 : 662,380.11 = 265,143.66 : x
  2. Step 2: Convert to fraction form
    479,988.60/662,380.11 = 265,143.66/x
  3. Step 3: Cross multiply
    479,988.60x = 662,380.11 × 265,143.66
  4. Step 4: Simplify right side
    479,988.60x = 175,625,886,676.60
  5. Step 5: Solve for x
    x = 175,625,886,676.60/479,988.60
  6. Step 6: Final answer
    x = 365,895.95

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