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Finding the Fourth Proportional to 644,997.40, 967,496.10 and 195,717.40

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Solution

The fourth proportional to 644,997.40, 967,496.10 and 195,717.40 is: 293,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,997.40 : 967,496.10 = 195,717.40 : x
  2. Step 2: Convert to fraction form
    644,997.40/967,496.10 = 195,717.40/x
  3. Step 3: Cross multiply
    644,997.40x = 967,496.10 × 195,717.40
  4. Step 4: Simplify right side
    644,997.40x = 189,355,821,202.14
  5. Step 5: Solve for x
    x = 189,355,821,202.14/644,997.40
  6. Step 6: Final answer
    x = 293,576.10

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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.