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Finding the Fourth Proportional to 608,865.85, 913,279.95 and 289,247.80

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Solution

The fourth proportional to 608,865.85, 913,279.95 and 289,247.80 is: 433,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,865.85 : 913,279.95 = 289,247.80 : x
  2. Step 2: Convert to fraction form
    608,865.85/913,279.95 = 289,247.80/x
  3. Step 3: Cross multiply
    608,865.85x = 913,279.95 × 289,247.80
  4. Step 4: Simplify right side
    608,865.85x = 264,164,216,321.61
  5. Step 5: Solve for x
    x = 264,164,216,321.61/608,865.85
  6. Step 6: Final answer
    x = 433,862.76

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