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Finding the Fourth Proportional to 439,676.26, 659,176.45 and 223,357.15

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Solution

The fourth proportional to 439,676.26, 659,176.45 and 223,357.15 is: 334,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,676.26 : 659,176.45 = 223,357.15 : x
  2. Step 2: Convert to fraction form
    439,676.26/659,176.45 = 223,357.15/x
  3. Step 3: Cross multiply
    439,676.26x = 659,176.45 × 223,357.15
  4. Step 4: Simplify right side
    439,676.26x = 147,231,770,954.69
  5. Step 5: Solve for x
    x = 147,231,770,954.69/439,676.26
  6. Step 6: Final answer
    x = 334,864.05

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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.