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Finding the Fourth Proportional to 386,706.73, 533,647.26 and 214,614.71

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Solution

The fourth proportional to 386,706.73, 533,647.26 and 214,614.71 is: 296,163.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,706.73 : 533,647.26 = 214,614.71 : x
  2. Step 2: Convert to fraction form
    386,706.73/533,647.26 = 214,614.71/x
  3. Step 3: Cross multiply
    386,706.73x = 533,647.26 × 214,614.71
  4. Step 4: Simplify right side
    386,706.73x = 114,528,550,382.86
  5. Step 5: Solve for x
    x = 114,528,550,382.86/386,706.73
  6. Step 6: Final answer
    x = 296,163.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.