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Finding the Fourth Proportional to 425,448.86, 587,131.74 and 234,474.55

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Solution

The fourth proportional to 425,448.86, 587,131.74 and 234,474.55 is: 323,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,448.86 : 587,131.74 = 234,474.55 : x
  2. Step 2: Convert to fraction form
    425,448.86/587,131.74 = 234,474.55/x
  3. Step 3: Cross multiply
    425,448.86x = 587,131.74 × 234,474.55
  4. Step 4: Simplify right side
    425,448.86x = 137,667,449,059.39
  5. Step 5: Solve for x
    x = 137,667,449,059.39/425,448.86
  6. Step 6: Final answer
    x = 323,581.67

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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.