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Finding the Fourth Proportional to 2,929.49, 4,394.92 and 849.54

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Solution

The fourth proportional to 2,929.49, 4,394.92 and 849.54 is: 1,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.49 : 4,394.92 = 849.54 : x
  2. Step 2: Convert to fraction form
    2,929.49/4,394.92 = 849.54/x
  3. Step 3: Cross multiply
    2,929.49x = 4,394.92 × 849.54
  4. Step 4: Simplify right side
    2,929.49x = 3,733,660.34
  5. Step 5: Solve for x
    x = 3,733,660.34/2,929.49
  6. Step 6: Final answer
    x = 1,274.51

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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.