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Finding the Fourth Proportional to 493,231.20, 739,846.80 and 193,612.20

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Solution

The fourth proportional to 493,231.20, 739,846.80 and 193,612.20 is: 290,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,231.20 : 739,846.80 = 193,612.20 : x
  2. Step 2: Convert to fraction form
    493,231.20/739,846.80 = 193,612.20/x
  3. Step 3: Cross multiply
    493,231.20x = 739,846.80 × 193,612.20
  4. Step 4: Simplify right side
    493,231.20x = 143,243,366,610.96
  5. Step 5: Solve for x
    x = 143,243,366,610.96/493,231.20
  6. Step 6: Final answer
    x = 290,418.30

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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.