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Finding the Fourth Proportional to 449,997.20, 674,348.36 and 193,759.42

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Solution

The fourth proportional to 449,997.20, 674,348.36 and 193,759.42 is: 290,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,997.20 : 674,348.36 = 193,759.42 : x
  2. Step 2: Convert to fraction form
    449,997.20/674,348.36 = 193,759.42/x
  3. Step 3: Cross multiply
    449,997.20x = 674,348.36 × 193,759.42
  4. Step 4: Simplify right side
    449,997.20x = 130,661,347,111.55
  5. Step 5: Solve for x
    x = 130,661,347,111.55/449,997.20
  6. Step 6: Final answer
    x = 290,360.36

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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.