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Finding the Fourth Proportional to 433,135.59, 649,796.11 and 129,553.56

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Solution

The fourth proportional to 433,135.59, 649,796.11 and 129,553.56 is: 194,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,135.59 : 649,796.11 = 129,553.56 : x
  2. Step 2: Convert to fraction form
    433,135.59/649,796.11 = 129,553.56/x
  3. Step 3: Cross multiply
    433,135.59x = 649,796.11 × 129,553.56
  4. Step 4: Simplify right side
    433,135.59x = 84,183,400,625.26
  5. Step 5: Solve for x
    x = 84,183,400,625.26/433,135.59
  6. Step 6: Final answer
    x = 194,358.08

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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.