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Finding the Fourth Proportional to 613,318.86, 846,361.19 and 341,379.76

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Solution

The fourth proportional to 613,318.86, 846,361.19 and 341,379.76 is: 471,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,318.86 : 846,361.19 = 341,379.76 : x
  2. Step 2: Convert to fraction form
    613,318.86/846,361.19 = 341,379.76/x
  3. Step 3: Cross multiply
    613,318.86x = 846,361.19 × 341,379.76
  4. Step 4: Simplify right side
    613,318.86x = 288,930,579,266.57
  5. Step 5: Solve for x
    x = 288,930,579,266.57/613,318.86
  6. Step 6: Final answer
    x = 471,093.58

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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.