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Finding the Fourth Proportional to 493,105.20, 739,657.80 and 404,458.80

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Solution

The fourth proportional to 493,105.20, 739,657.80 and 404,458.80 is: 606,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,105.20 : 739,657.80 = 404,458.80 : x
  2. Step 2: Convert to fraction form
    493,105.20/739,657.80 = 404,458.80/x
  3. Step 3: Cross multiply
    493,105.20x = 739,657.80 × 404,458.80
  4. Step 4: Simplify right side
    493,105.20x = 299,161,106,198.64
  5. Step 5: Solve for x
    x = 299,161,106,198.64/493,105.20
  6. Step 6: Final answer
    x = 606,688.20

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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.