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Finding the Fourth Proportional to 483,752.15, 667,561.16 and 311,677.37

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Solution

The fourth proportional to 483,752.15, 667,561.16 and 311,677.37 is: 430,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,752.15 : 667,561.16 = 311,677.37 : x
  2. Step 2: Convert to fraction form
    483,752.15/667,561.16 = 311,677.37/x
  3. Step 3: Cross multiply
    483,752.15x = 667,561.16 × 311,677.37
  4. Step 4: Simplify right side
    483,752.15x = 208,063,707,163.06
  5. Step 5: Solve for x
    x = 208,063,707,163.06/483,752.15
  6. Step 6: Final answer
    x = 430,103.94

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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.