Home / 217,589.20-326,416.74-77,314.48

Finding the Fourth Proportional to 217,589.20, 326,416.74 and 77,314.48

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Solution

The fourth proportional to 217,589.20, 326,416.74 and 77,314.48 is: 115,983.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,589.20 : 326,416.74 = 77,314.48 : x
  2. Step 2: Convert to fraction form
    217,589.20/326,416.74 = 77,314.48/x
  3. Step 3: Cross multiply
    217,589.20x = 326,416.74 × 77,314.48
  4. Step 4: Simplify right side
    217,589.20x = 25,236,740,516.40
  5. Step 5: Solve for x
    x = 25,236,740,516.40/217,589.20
  6. Step 6: Final answer
    x = 115,983.42

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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.