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Finding the Fourth Proportional to 479,419.92, 718,942.95 and 179,737.16

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Solution

The fourth proportional to 479,419.92, 718,942.95 and 179,737.16 is: 269,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,419.92 : 718,942.95 = 179,737.16 : x
  2. Step 2: Convert to fraction form
    479,419.92/718,942.95 = 179,737.16/x
  3. Step 3: Cross multiply
    479,419.92x = 718,942.95 × 179,737.16
  4. Step 4: Simplify right side
    479,419.92x = 129,220,764,035.02
  5. Step 5: Solve for x
    x = 129,220,764,035.02/479,419.92
  6. Step 6: Final answer
    x = 269,535.66

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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.