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Finding the Fourth Proportional to 569,609.75, 786,059.44 and 321,231.96

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Solution

The fourth proportional to 569,609.75, 786,059.44 and 321,231.96 is: 443,298.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,609.75 : 786,059.44 = 321,231.96 : x
  2. Step 2: Convert to fraction form
    569,609.75/786,059.44 = 321,231.96/x
  3. Step 3: Cross multiply
    569,609.75x = 786,059.44 × 321,231.96
  4. Step 4: Simplify right side
    569,609.75x = 252,507,413,784.62
  5. Step 5: Solve for x
    x = 252,507,413,784.62/569,609.75
  6. Step 6: Final answer
    x = 443,298.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.