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Finding the Fourth Proportional to 378,475.61, 566,791.18 and 250,313.81

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Solution

The fourth proportional to 378,475.61, 566,791.18 and 250,313.81 is: 374,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,475.61 : 566,791.18 = 250,313.81 : x
  2. Step 2: Convert to fraction form
    378,475.61/566,791.18 = 250,313.81/x
  3. Step 3: Cross multiply
    378,475.61x = 566,791.18 × 250,313.81
  4. Step 4: Simplify right side
    378,475.61x = 141,875,659,740.20
  5. Step 5: Solve for x
    x = 141,875,659,740.20/378,475.61
  6. Step 6: Final answer
    x = 374,860.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.