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Finding the Fourth Proportional to 500,861.50, 751,379.74 and 220,371.46

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Solution

The fourth proportional to 500,861.50, 751,379.74 and 220,371.46 is: 330,595.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,861.50 : 751,379.74 = 220,371.46 : x
  2. Step 2: Convert to fraction form
    500,861.50/751,379.74 = 220,371.46/x
  3. Step 3: Cross multiply
    500,861.50x = 751,379.74 × 220,371.46
  4. Step 4: Simplify right side
    500,861.50x = 165,582,650,318.22
  5. Step 5: Solve for x
    x = 165,582,650,318.22/500,861.50
  6. Step 6: Final answer
    x = 330,595.68

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1.5x scale

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.