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Finding the Fourth Proportional to 275,791.24, 380,591.70 and 156,559.24

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Solution

The fourth proportional to 275,791.24, 380,591.70 and 156,559.24 is: 216,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,791.24 : 380,591.70 = 156,559.24 : x
  2. Step 2: Convert to fraction form
    275,791.24/380,591.70 = 156,559.24/x
  3. Step 3: Cross multiply
    275,791.24x = 380,591.70 × 156,559.24
  4. Step 4: Simplify right side
    275,791.24x = 59,585,147,302.31
  5. Step 5: Solve for x
    x = 59,585,147,302.31/275,791.24
  6. Step 6: Final answer
    x = 216,051.63

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1.5x scale

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.