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Finding the Fourth Proportional to 576,014.22, 863,377.48 and 215,838.61

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Solution

The fourth proportional to 576,014.22, 863,377.48 and 215,838.61 is: 323,516.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,014.22 : 863,377.48 = 215,838.61 : x
  2. Step 2: Convert to fraction form
    576,014.22/863,377.48 = 215,838.61/x
  3. Step 3: Cross multiply
    576,014.22x = 863,377.48 × 215,838.61
  4. Step 4: Simplify right side
    576,014.22x = 186,350,193,299.86
  5. Step 5: Solve for x
    x = 186,350,193,299.86/576,014.22
  6. Step 6: Final answer
    x = 323,516.65

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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.