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Finding the Fourth Proportional to 330,092.70, 455,481.27 and 186,844.20

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Solution

The fourth proportional to 330,092.70, 455,481.27 and 186,844.20 is: 257,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,092.70 : 455,481.27 = 186,844.20 : x
  2. Step 2: Convert to fraction form
    330,092.70/455,481.27 = 186,844.20/x
  3. Step 3: Cross multiply
    330,092.70x = 455,481.27 × 186,844.20
  4. Step 4: Simplify right side
    330,092.70x = 85,104,033,508.13
  5. Step 5: Solve for x
    x = 85,104,033,508.13/330,092.70
  6. Step 6: Final answer
    x = 257,818.59

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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.