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Finding the Fourth Proportional to 2,456.33, 3,683.70 and 812.48

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Solution

The fourth proportional to 2,456.33, 3,683.70 and 812.48 is: 1,218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.33 : 3,683.70 = 812.48 : x
  2. Step 2: Convert to fraction form
    2,456.33/3,683.70 = 812.48/x
  3. Step 3: Cross multiply
    2,456.33x = 3,683.70 × 812.48
  4. Step 4: Simplify right side
    2,456.33x = 2,992,932.58
  5. Step 5: Solve for x
    x = 2,992,932.58/2,456.33
  6. Step 6: Final answer
    x = 1,218.46

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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.