Home / 217,588.20-326,415.24-77,313.48

Finding the Fourth Proportional to 217,588.20, 326,415.24 and 77,313.48

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Solution

The fourth proportional to 217,588.20, 326,415.24 and 77,313.48 is: 115,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,588.20 : 326,415.24 = 77,313.48 : x
  2. Step 2: Convert to fraction form
    217,588.20/326,415.24 = 77,313.48/x
  3. Step 3: Cross multiply
    217,588.20x = 326,415.24 × 77,313.48
  4. Step 4: Simplify right side
    217,588.20x = 25,236,298,129.44
  5. Step 5: Solve for x
    x = 25,236,298,129.44/217,588.20
  6. Step 6: Final answer
    x = 115,981.92

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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.