Home / 329,321.52-454,274.19-198,408.24

Finding the Fourth Proportional to 329,321.52, 454,274.19 and 198,408.24

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Solution

The fourth proportional to 329,321.52, 454,274.19 and 198,408.24 is: 273,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,321.52 : 454,274.19 = 198,408.24 : x
  2. Step 2: Convert to fraction form
    329,321.52/454,274.19 = 198,408.24/x
  3. Step 3: Cross multiply
    329,321.52x = 454,274.19 × 198,408.24
  4. Step 4: Simplify right side
    329,321.52x = 90,131,742,515.33
  5. Step 5: Solve for x
    x = 90,131,742,515.33/329,321.52
  6. Step 6: Final answer
    x = 273,689.20

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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.