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Finding the Fourth Proportional to 303,062.70, 455,578.20 and 214,926.60

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Solution

The fourth proportional to 303,062.70, 455,578.20 and 214,926.60 is: 323,087.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,062.70 : 455,578.20 = 214,926.60 : x
  2. Step 2: Convert to fraction form
    303,062.70/455,578.20 = 214,926.60/x
  3. Step 3: Cross multiply
    303,062.70x = 455,578.20 × 214,926.60
  4. Step 4: Simplify right side
    303,062.70x = 97,915,873,560.12
  5. Step 5: Solve for x
    x = 97,915,873,560.12/303,062.70
  6. Step 6: Final answer
    x = 323,087.84

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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.