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Finding the Fourth Proportional to 479,426.76, 718,953.12 and 179,743.86

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Solution

The fourth proportional to 479,426.76, 718,953.12 and 179,743.86 is: 269,545.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,426.76 : 718,953.12 = 179,743.86 : x
  2. Step 2: Convert to fraction form
    479,426.76/718,953.12 = 179,743.86/x
  3. Step 3: Cross multiply
    479,426.76x = 718,953.12 × 179,743.86
  4. Step 4: Simplify right side
    479,426.76x = 129,227,408,947.84
  5. Step 5: Solve for x
    x = 129,227,408,947.84/479,426.76
  6. Step 6: Final answer
    x = 269,545.67

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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.