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Finding the Fourth Proportional to 449,861.12, 674,803.80 and 197,011.52

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Solution

The fourth proportional to 449,861.12, 674,803.80 and 197,011.52 is: 295,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,861.12 : 674,803.80 = 197,011.52 : x
  2. Step 2: Convert to fraction form
    449,861.12/674,803.80 = 197,011.52/x
  3. Step 3: Cross multiply
    449,861.12x = 674,803.80 × 197,011.52
  4. Step 4: Simplify right side
    449,861.12x = 132,944,122,339.78
  5. Step 5: Solve for x
    x = 132,944,122,339.78/449,861.12
  6. Step 6: Final answer
    x = 295,522.59

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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.