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Finding the Fourth Proportional to 487,855.53, 731,249.46 and 251,212.41

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Solution

The fourth proportional to 487,855.53, 731,249.46 and 251,212.41 is: 376,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,855.53 : 731,249.46 = 251,212.41 : x
  2. Step 2: Convert to fraction form
    487,855.53/731,249.46 = 251,212.41/x
  3. Step 3: Cross multiply
    487,855.53x = 731,249.46 × 251,212.41
  4. Step 4: Simplify right side
    487,855.53x = 183,698,939,157.80
  5. Step 5: Solve for x
    x = 183,698,939,157.80/487,855.53
  6. Step 6: Final answer
    x = 376,543.73

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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.