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Finding the Fourth Proportional to 432,683.19, 649,086.21 and 133,188.69

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Solution

The fourth proportional to 432,683.19, 649,086.21 and 133,188.69 is: 199,801.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,683.19 : 649,086.21 = 133,188.69 : x
  2. Step 2: Convert to fraction form
    432,683.19/649,086.21 = 133,188.69/x
  3. Step 3: Cross multiply
    432,683.19x = 649,086.21 × 133,188.69
  4. Step 4: Simplify right side
    432,683.19x = 86,450,942,006.96
  5. Step 5: Solve for x
    x = 86,450,942,006.96/432,683.19
  6. Step 6: Final answer
    x = 199,801.94

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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.