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Finding the Fourth Proportional to 479,879.15, 719,265.06 and 180,168.57

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Solution

The fourth proportional to 479,879.15, 719,265.06 and 180,168.57 is: 270,044.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,879.15 : 719,265.06 = 180,168.57 : x
  2. Step 2: Convert to fraction form
    479,879.15/719,265.06 = 180,168.57/x
  3. Step 3: Cross multiply
    479,879.15x = 719,265.06 × 180,168.57
  4. Step 4: Simplify right side
    479,879.15x = 129,588,957,311.16
  5. Step 5: Solve for x
    x = 129,588,957,311.16/479,879.15
  6. Step 6: Final answer
    x = 270,044.99

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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.