Home / 928,168.11-1,392,253.36-254,255.34

Finding the Fourth Proportional to 928,168.11, 1,392,253.36 and 254,255.34

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Solution

The fourth proportional to 928,168.11, 1,392,253.36 and 254,255.34 is: 381,383.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,168.11 : 1,392,253.36 = 254,255.34 : x
  2. Step 2: Convert to fraction form
    928,168.11/1,392,253.36 = 254,255.34/x
  3. Step 3: Cross multiply
    928,168.11x = 1,392,253.36 × 254,255.34
  4. Step 4: Simplify right side
    928,168.11x = 353,987,848,166.83
  5. Step 5: Solve for x
    x = 353,987,848,166.83/928,168.11
  6. Step 6: Final answer
    x = 381,383.33

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Double scale
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Similar ratio
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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.