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Finding the Fourth Proportional to 433,708.56, 650,759.40 and 256,561.56

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Solution

The fourth proportional to 433,708.56, 650,759.40 and 256,561.56 is: 384,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,708.56 : 650,759.40 = 256,561.56 : x
  2. Step 2: Convert to fraction form
    433,708.56/650,759.40 = 256,561.56/x
  3. Step 3: Cross multiply
    433,708.56x = 650,759.40 × 256,561.56
  4. Step 4: Simplify right side
    433,708.56x = 166,959,846,848.66
  5. Step 5: Solve for x
    x = 166,959,846,848.66/433,708.56
  6. Step 6: Final answer
    x = 384,958.62

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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.