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Finding the Fourth Proportional to 363,993.45, 545,990.18 and 186,846.45

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Solution

The fourth proportional to 363,993.45, 545,990.18 and 186,846.45 is: 280,269.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,993.45 : 545,990.18 = 186,846.45 : x
  2. Step 2: Convert to fraction form
    363,993.45/545,990.18 = 186,846.45/x
  3. Step 3: Cross multiply
    363,993.45x = 545,990.18 × 186,846.45
  4. Step 4: Simplify right side
    363,993.45x = 102,016,325,933.63
  5. Step 5: Solve for x
    x = 102,016,325,933.63/363,993.45
  6. Step 6: Final answer
    x = 280,269.68

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.