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Finding the Fourth Proportional to 408,045.70, 612,068.55 and 186,861.70

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Solution

The fourth proportional to 408,045.70, 612,068.55 and 186,861.70 is: 280,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,045.70 : 612,068.55 = 186,861.70 : x
  2. Step 2: Convert to fraction form
    408,045.70/612,068.55 = 186,861.70/x
  3. Step 3: Cross multiply
    408,045.70x = 612,068.55 × 186,861.70
  4. Step 4: Simplify right side
    408,045.70x = 114,372,169,769.54
  5. Step 5: Solve for x
    x = 114,372,169,769.54/408,045.70
  6. Step 6: Final answer
    x = 280,292.55

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