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Finding the Fourth Proportional to 431,847.12, 595,640.52 and 374,383.72

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Solution

The fourth proportional to 431,847.12, 595,640.52 and 374,383.72 is: 516,382.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,847.12 : 595,640.52 = 374,383.72 : x
  2. Step 2: Convert to fraction form
    431,847.12/595,640.52 = 374,383.72/x
  3. Step 3: Cross multiply
    431,847.12x = 595,640.52 × 374,383.72
  4. Step 4: Simplify right side
    431,847.12x = 222,998,113,660.33
  5. Step 5: Solve for x
    x = 222,998,113,660.33/431,847.12
  6. Step 6: Final answer
    x = 516,382.08

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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.