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Finding the Fourth Proportional to 606,743.92, 835,939.20 and 422,809.12

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Solution

The fourth proportional to 606,743.92, 835,939.20 and 422,809.12 is: 582,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,743.92 : 835,939.20 = 422,809.12 : x
  2. Step 2: Convert to fraction form
    606,743.92/835,939.20 = 422,809.12/x
  3. Step 3: Cross multiply
    606,743.92x = 835,939.20 × 422,809.12
  4. Step 4: Simplify right side
    606,743.92x = 353,442,717,525.50
  5. Step 5: Solve for x
    x = 353,442,717,525.50/606,743.92
  6. Step 6: Final answer
    x = 582,523.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.