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Finding the Fourth Proportional to 275,427.80, 413,141.70 and 275,427.80

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Solution

The fourth proportional to 275,427.80, 413,141.70 and 275,427.80 is: 413,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,427.80 : 413,141.70 = 275,427.80 : x
  2. Step 2: Convert to fraction form
    275,427.80/413,141.70 = 275,427.80/x
  3. Step 3: Cross multiply
    275,427.80x = 413,141.70 × 275,427.80
  4. Step 4: Simplify right side
    275,427.80x = 113,790,709,519.26
  5. Step 5: Solve for x
    x = 113,790,709,519.26/275,427.80
  6. Step 6: Final answer
    x = 413,141.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.