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Finding the Fourth Proportional to 451,462.60, 676,975.20 and 251,570.80

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Solution

The fourth proportional to 451,462.60, 676,975.20 and 251,570.80 is: 377,234.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,462.60 : 676,975.20 = 251,570.80 : x
  2. Step 2: Convert to fraction form
    451,462.60/676,975.20 = 251,570.80/x
  3. Step 3: Cross multiply
    451,462.60x = 676,975.20 × 251,570.80
  4. Step 4: Simplify right side
    451,462.60x = 170,307,192,644.16
  5. Step 5: Solve for x
    x = 170,307,192,644.16/451,462.60
  6. Step 6: Final answer
    x = 377,234.33

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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.