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Finding the Fourth Proportional to 1,824.16, 2,736.72 and 654.28

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Solution

The fourth proportional to 1,824.16, 2,736.72 and 654.28 is: 981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,824.16 : 2,736.72 = 654.28 : x
  2. Step 2: Convert to fraction form
    1,824.16/2,736.72 = 654.28/x
  3. Step 3: Cross multiply
    1,824.16x = 2,736.72 × 654.28
  4. Step 4: Simplify right side
    1,824.16x = 1,790,581.16
  5. Step 5: Solve for x
    x = 1,790,581.16/1,824.16
  6. Step 6: Final answer
    x = 981.59

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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.