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Finding the Fourth Proportional to 2,483.36, 3,722.44 and 839.34

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Solution

The fourth proportional to 2,483.36, 3,722.44 and 839.34 is: 1,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,483.36 : 3,722.44 = 839.34 : x
  2. Step 2: Convert to fraction form
    2,483.36/3,722.44 = 839.34/x
  3. Step 3: Cross multiply
    2,483.36x = 3,722.44 × 839.34
  4. Step 4: Simplify right side
    2,483.36x = 3,124,392.79
  5. Step 5: Solve for x
    x = 3,124,392.79/2,483.36
  6. Step 6: Final answer
    x = 1,258.13

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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.