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Finding the Fourth Proportional to 395,951.96, 546,372.81 and 242,996.60

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Solution

The fourth proportional to 395,951.96, 546,372.81 and 242,996.60 is: 335,310.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,951.96 : 546,372.81 = 242,996.60 : x
  2. Step 2: Convert to fraction form
    395,951.96/546,372.81 = 242,996.60/x
  3. Step 3: Cross multiply
    395,951.96x = 546,372.81 × 242,996.60
  4. Step 4: Simplify right side
    395,951.96x = 132,766,732,430.58
  5. Step 5: Solve for x
    x = 132,766,732,430.58/395,951.96
  6. Step 6: Final answer
    x = 335,310.21

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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.