Home / 217,717.05-326,596.19-84,607.57

Finding the Fourth Proportional to 217,717.05, 326,596.19 and 84,607.57

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Solution

The fourth proportional to 217,717.05, 326,596.19 and 84,607.57 is: 126,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,717.05 : 326,596.19 = 84,607.57 : x
  2. Step 2: Convert to fraction form
    217,717.05/326,596.19 = 84,607.57/x
  3. Step 3: Cross multiply
    217,717.05x = 326,596.19 × 84,607.57
  4. Step 4: Simplify right side
    217,717.05x = 27,632,509,992.37
  5. Step 5: Solve for x
    x = 27,632,509,992.37/217,717.05
  6. Step 6: Final answer
    x = 126,919.37

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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.