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Finding the Fourth Proportional to 613,318.69, 846,379.68 and 341,380.72

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Solution

The fourth proportional to 613,318.69, 846,379.68 and 341,380.72 is: 471,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,318.69 : 846,379.68 = 341,380.72 : x
  2. Step 2: Convert to fraction form
    613,318.69/846,379.68 = 341,380.72/x
  3. Step 3: Cross multiply
    613,318.69x = 846,379.68 × 341,380.72
  4. Step 4: Simplify right side
    613,318.69x = 288,937,704,551.77
  5. Step 5: Solve for x
    x = 288,937,704,551.77/613,318.69
  6. Step 6: Final answer
    x = 471,105.33

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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.