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Finding the Fourth Proportional to 493,226.40, 739,839.60 and 177,693.60

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Solution

The fourth proportional to 493,226.40, 739,839.60 and 177,693.60 is: 266,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,226.40 : 739,839.60 = 177,693.60 : x
  2. Step 2: Convert to fraction form
    493,226.40/739,839.60 = 177,693.60/x
  3. Step 3: Cross multiply
    493,226.40x = 739,839.60 × 177,693.60
  4. Step 4: Simplify right side
    493,226.40x = 131,464,761,946.56
  5. Step 5: Solve for x
    x = 131,464,761,946.56/493,226.40
  6. Step 6: Final answer
    x = 266,540.40

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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.