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Finding the Fourth Proportional to 367,958.45, 507,765.97 and 215,010.60

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Solution

The fourth proportional to 367,958.45, 507,765.97 and 215,010.60 is: 296,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,958.45 : 507,765.97 = 215,010.60 : x
  2. Step 2: Convert to fraction form
    367,958.45/507,765.97 = 215,010.60/x
  3. Step 3: Cross multiply
    367,958.45x = 507,765.97 × 215,010.60
  4. Step 4: Simplify right side
    367,958.45x = 109,175,064,794.23
  5. Step 5: Solve for x
    x = 109,175,064,794.23/367,958.45
  6. Step 6: Final answer
    x = 296,704.88

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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.