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Finding the Fourth Proportional to 496,571.20, 685,212.56 and 292,608.88

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Solution

The fourth proportional to 496,571.20, 685,212.56 and 292,608.88 is: 403,767.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,571.20 : 685,212.56 = 292,608.88 : x
  2. Step 2: Convert to fraction form
    496,571.20/685,212.56 = 292,608.88/x
  3. Step 3: Cross multiply
    496,571.20x = 685,212.56 × 292,608.88
  4. Step 4: Simplify right side
    496,571.20x = 200,499,279,743.53
  5. Step 5: Solve for x
    x = 200,499,279,743.53/496,571.20
  6. Step 6: Final answer
    x = 403,767.44

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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.