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Finding the Fourth Proportional to 2,392.92, 3,302.20 and 1,330.74

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Solution

The fourth proportional to 2,392.92, 3,302.20 and 1,330.74 is: 1,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.92 : 3,302.20 = 1,330.74 : x
  2. Step 2: Convert to fraction form
    2,392.92/3,302.20 = 1,330.74/x
  3. Step 3: Cross multiply
    2,392.92x = 3,302.20 × 1,330.74
  4. Step 4: Simplify right side
    2,392.92x = 4,394,369.63
  5. Step 5: Solve for x
    x = 4,394,369.63/2,392.92
  6. Step 6: Final answer
    x = 1,836.40

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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.