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Finding the Fourth Proportional to 488,144.40, 731,633.40 and 251,365.20

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Solution

The fourth proportional to 488,144.40, 731,633.40 and 251,365.20 is: 376,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,144.40 : 731,633.40 = 251,365.20 : x
  2. Step 2: Convert to fraction form
    488,144.40/731,633.40 = 251,365.20/x
  3. Step 3: Cross multiply
    488,144.40x = 731,633.40 × 251,365.20
  4. Step 4: Simplify right side
    488,144.40x = 183,907,175,917.68
  5. Step 5: Solve for x
    x = 183,907,175,917.68/488,144.40
  6. Step 6: Final answer
    x = 376,747.49

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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.