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Finding the Fourth Proportional to 433,245.42, 649,617.99 and 133,645.56

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Solution

The fourth proportional to 433,245.42, 649,617.99 and 133,645.56 is: 200,391.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,245.42 : 649,617.99 = 133,645.56 : x
  2. Step 2: Convert to fraction form
    433,245.42/649,617.99 = 133,645.56/x
  3. Step 3: Cross multiply
    433,245.42x = 649,617.99 × 133,645.56
  4. Step 4: Simplify right side
    433,245.42x = 86,818,557,122.39
  5. Step 5: Solve for x
    x = 86,818,557,122.39/433,245.42
  6. Step 6: Final answer
    x = 200,391.17

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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.