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Finding the Fourth Proportional to 488,542.24, 674,188.48 and 297,555.78

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Solution

The fourth proportional to 488,542.24, 674,188.48 and 297,555.78 is: 410,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,542.24 : 674,188.48 = 297,555.78 : x
  2. Step 2: Convert to fraction form
    488,542.24/674,188.48 = 297,555.78/x
  3. Step 3: Cross multiply
    488,542.24x = 674,188.48 × 297,555.78
  4. Step 4: Simplify right side
    488,542.24x = 200,608,679,033.41
  5. Step 5: Solve for x
    x = 200,608,679,033.41/488,542.24
  6. Step 6: Final answer
    x = 410,627.09

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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.