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Finding the Fourth Proportional to 283,707.48, 391,676.22 and 188,344.56

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Solution

The fourth proportional to 283,707.48, 391,676.22 and 188,344.56 is: 260,021.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,707.48 : 391,676.22 = 188,344.56 : x
  2. Step 2: Convert to fraction form
    283,707.48/391,676.22 = 188,344.56/x
  3. Step 3: Cross multiply
    283,707.48x = 391,676.22 × 188,344.56
  4. Step 4: Simplify right side
    283,707.48x = 73,770,085,318.36
  5. Step 5: Solve for x
    x = 73,770,085,318.36/283,707.48
  6. Step 6: Final answer
    x = 260,021.64

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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.