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Finding the Fourth Proportional to 395,052.69, 545,174.60 and 222,977.94

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Solution

The fourth proportional to 395,052.69, 545,174.60 and 222,977.94 is: 307,710.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,052.69 : 545,174.60 = 222,977.94 : x
  2. Step 2: Convert to fraction form
    395,052.69/545,174.60 = 222,977.94/x
  3. Step 3: Cross multiply
    395,052.69x = 545,174.60 × 222,977.94
  4. Step 4: Simplify right side
    395,052.69x = 121,561,908,876.58
  5. Step 5: Solve for x
    x = 121,561,908,876.58/395,052.69
  6. Step 6: Final answer
    x = 307,710.62

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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.