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Finding the Fourth Proportional to 433,426.44, 649,978.02 and 149,036.56

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Solution

The fourth proportional to 433,426.44, 649,978.02 and 149,036.56 is: 223,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,426.44 : 649,978.02 = 149,036.56 : x
  2. Step 2: Convert to fraction form
    433,426.44/649,978.02 = 149,036.56/x
  3. Step 3: Cross multiply
    433,426.44x = 649,978.02 × 149,036.56
  4. Step 4: Simplify right side
    433,426.44x = 96,870,486,551.47
  5. Step 5: Solve for x
    x = 96,870,486,551.47/433,426.44
  6. Step 6: Final answer
    x = 223,499.25

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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.