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Finding the Fourth Proportional to 395,336.85, 545,562.55 and 214,044.98

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Solution

The fourth proportional to 395,336.85, 545,562.55 and 214,044.98 is: 295,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,336.85 : 545,562.55 = 214,044.98 : x
  2. Step 2: Convert to fraction form
    395,336.85/545,562.55 = 214,044.98/x
  3. Step 3: Cross multiply
    395,336.85x = 545,562.55 × 214,044.98
  4. Step 4: Simplify right side
    395,336.85x = 116,774,925,103.50
  5. Step 5: Solve for x
    x = 116,774,925,103.50/395,336.85
  6. Step 6: Final answer
    x = 295,380.83

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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.