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Finding the Fourth Proportional to 339,968.59, 469,157.13 and 189,065.59

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Solution

The fourth proportional to 339,968.59, 469,157.13 and 189,065.59 is: 260,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,968.59 : 469,157.13 = 189,065.59 : x
  2. Step 2: Convert to fraction form
    339,968.59/469,157.13 = 189,065.59/x
  3. Step 3: Cross multiply
    339,968.59x = 469,157.13 × 189,065.59
  4. Step 4: Simplify right side
    339,968.59x = 88,701,469,586.16
  5. Step 5: Solve for x
    x = 88,701,469,586.16/339,968.59
  6. Step 6: Final answer
    x = 260,910.78

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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.