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Finding the Fourth Proportional to 400,624.56, 552,861.99 and 219,348.18

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Solution

The fourth proportional to 400,624.56, 552,861.99 and 219,348.18 is: 302,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,624.56 : 552,861.99 = 219,348.18 : x
  2. Step 2: Convert to fraction form
    400,624.56/552,861.99 = 219,348.18/x
  3. Step 3: Cross multiply
    400,624.56x = 552,861.99 × 219,348.18
  4. Step 4: Simplify right side
    400,624.56x = 121,269,271,297.68
  5. Step 5: Solve for x
    x = 121,269,271,297.68/400,624.56
  6. Step 6: Final answer
    x = 302,700.54

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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.