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Finding the Fourth Proportional to 478,879.53, 718,298.49 and 119,042.76

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Solution

The fourth proportional to 478,879.53, 718,298.49 and 119,042.76 is: 178,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,879.53 : 718,298.49 = 119,042.76 : x
  2. Step 2: Convert to fraction form
    478,879.53/718,298.49 = 119,042.76/x
  3. Step 3: Cross multiply
    478,879.53x = 718,298.49 × 119,042.76
  4. Step 4: Simplify right side
    478,879.53x = 85,508,234,753.43
  5. Step 5: Solve for x
    x = 85,508,234,753.43/478,879.53
  6. Step 6: Final answer
    x = 178,558.97

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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.