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Finding the Fourth Proportional to 275,790.54, 380,736.27 and 185,620.62

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Solution

The fourth proportional to 275,790.54, 380,736.27 and 185,620.62 is: 256,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,790.54 : 380,736.27 = 185,620.62 : x
  2. Step 2: Convert to fraction form
    275,790.54/380,736.27 = 185,620.62/x
  3. Step 3: Cross multiply
    275,790.54x = 380,736.27 × 185,620.62
  4. Step 4: Simplify right side
    275,790.54x = 70,672,502,493.89
  5. Step 5: Solve for x
    x = 70,672,502,493.89/275,790.54
  6. Step 6: Final answer
    x = 256,254.27

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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.