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Finding the Fourth Proportional to 275,736.20, 413,604.30 and 117,980.60

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Solution

The fourth proportional to 275,736.20, 413,604.30 and 117,980.60 is: 176,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,736.20 : 413,604.30 = 117,980.60 : x
  2. Step 2: Convert to fraction form
    275,736.20/413,604.30 = 117,980.60/x
  3. Step 3: Cross multiply
    275,736.20x = 413,604.30 × 117,980.60
  4. Step 4: Simplify right side
    275,736.20x = 48,797,283,476.58
  5. Step 5: Solve for x
    x = 48,797,283,476.58/275,736.20
  6. Step 6: Final answer
    x = 176,970.90

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1.5x scale

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.