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Finding the Fourth Proportional to 447,199.92, 617,132.88 and 253,644.48

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Solution

The fourth proportional to 447,199.92, 617,132.88 and 253,644.48 is: 350,027.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,199.92 : 617,132.88 = 253,644.48 : x
  2. Step 2: Convert to fraction form
    447,199.92/617,132.88 = 253,644.48/x
  3. Step 3: Cross multiply
    447,199.92x = 617,132.88 × 253,644.48
  4. Step 4: Simplify right side
    447,199.92x = 156,532,348,438.50
  5. Step 5: Solve for x
    x = 156,532,348,438.50/447,199.92
  6. Step 6: Final answer
    x = 350,027.68

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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.