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Finding the Fourth Proportional to 493,273.80, 739,910.70 and 413,557.65

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Solution

The fourth proportional to 493,273.80, 739,910.70 and 413,557.65 is: 620,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,273.80 : 739,910.70 = 413,557.65 : x
  2. Step 2: Convert to fraction form
    493,273.80/739,910.70 = 413,557.65/x
  3. Step 3: Cross multiply
    493,273.80x = 739,910.70 × 413,557.65
  4. Step 4: Simplify right side
    493,273.80x = 305,995,730,301.86
  5. Step 5: Solve for x
    x = 305,995,730,301.86/493,273.80
  6. Step 6: Final answer
    x = 620,336.48

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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.