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Finding the Fourth Proportional to 353,986.56, 530,426.88 and 301,178.88

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Solution

The fourth proportional to 353,986.56, 530,426.88 and 301,178.88 is: 451,297.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,986.56 : 530,426.88 = 301,178.88 : x
  2. Step 2: Convert to fraction form
    353,986.56/530,426.88 = 301,178.88/x
  3. Step 3: Cross multiply
    353,986.56x = 530,426.88 × 301,178.88
  4. Step 4: Simplify right side
    353,986.56x = 159,753,373,640.29
  5. Step 5: Solve for x
    x = 159,753,373,640.29/353,986.56
  6. Step 6: Final answer
    x = 451,297.85

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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.