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Finding the Fourth Proportional to 639,595.68, 959,226.24 and 190,195.44

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Solution

The fourth proportional to 639,595.68, 959,226.24 and 190,195.44 is: 285,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,595.68 : 959,226.24 = 190,195.44 : x
  2. Step 2: Convert to fraction form
    639,595.68/959,226.24 = 190,195.44/x
  3. Step 3: Cross multiply
    639,595.68x = 959,226.24 × 190,195.44
  4. Step 4: Simplify right side
    639,595.68x = 182,440,456,776.35
  5. Step 5: Solve for x
    x = 182,440,456,776.35/639,595.68
  6. Step 6: Final answer
    x = 285,243.42

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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.