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Finding the Fourth Proportional to 395,636.92, 545,979.48 and 214,348.86

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Solution

The fourth proportional to 395,636.92, 545,979.48 and 214,348.86 is: 295,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,636.92 : 545,979.48 = 214,348.86 : x
  2. Step 2: Convert to fraction form
    395,636.92/545,979.48 = 214,348.86/x
  3. Step 3: Cross multiply
    395,636.92x = 545,979.48 × 214,348.86
  4. Step 4: Simplify right side
    395,636.92x = 117,030,077,220.57
  5. Step 5: Solve for x
    x = 117,030,077,220.57/395,636.92
  6. Step 6: Final answer
    x = 295,801.71

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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.