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Finding the Fourth Proportional to 367,930.44, 507,882.78 and 215,018.46

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Solution

The fourth proportional to 367,930.44, 507,882.78 and 215,018.46 is: 296,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,930.44 : 507,882.78 = 215,018.46 : x
  2. Step 2: Convert to fraction form
    367,930.44/507,882.78 = 215,018.46/x
  3. Step 3: Cross multiply
    367,930.44x = 507,882.78 × 215,018.46
  4. Step 4: Simplify right side
    367,930.44x = 109,204,173,216.12
  5. Step 5: Solve for x
    x = 109,204,173,216.12/367,930.44
  6. Step 6: Final answer
    x = 296,806.57

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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.