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Finding the Fourth Proportional to 640,369.23, 960,553.84 and 241,099.57

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Solution

The fourth proportional to 640,369.23, 960,553.84 and 241,099.57 is: 361,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,369.23 : 960,553.84 = 241,099.57 : x
  2. Step 2: Convert to fraction form
    640,369.23/960,553.84 = 241,099.57/x
  3. Step 3: Cross multiply
    640,369.23x = 960,553.84 × 241,099.57
  4. Step 4: Simplify right side
    640,369.23x = 231,589,117,785.85
  5. Step 5: Solve for x
    x = 231,589,117,785.85/640,369.23
  6. Step 6: Final answer
    x = 361,649.35

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Double scale
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Similar ratio
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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.