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Finding the Fourth Proportional to 639,648.44, 960,616.24 and 613,933.32

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Solution

The fourth proportional to 639,648.44, 960,616.24 and 613,933.32 is: 921,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,648.44 : 960,616.24 = 613,933.32 : x
  2. Step 2: Convert to fraction form
    639,648.44/960,616.24 = 613,933.32/x
  3. Step 3: Cross multiply
    639,648.44x = 960,616.24 × 613,933.32
  4. Step 4: Simplify right side
    639,648.44x = 589,754,317,469.12
  5. Step 5: Solve for x
    x = 589,754,317,469.12/639,648.44
  6. Step 6: Final answer
    x = 921,997.59

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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.