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Finding the Fourth Proportional to 1,736.68, 2,604.85 and 956.43

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Solution

The fourth proportional to 1,736.68, 2,604.85 and 956.43 is: 1,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.68 : 2,604.85 = 956.43 : x
  2. Step 2: Convert to fraction form
    1,736.68/2,604.85 = 956.43/x
  3. Step 3: Cross multiply
    1,736.68x = 2,604.85 × 956.43
  4. Step 4: Simplify right side
    1,736.68x = 2,491,356.69
  5. Step 5: Solve for x
    x = 2,491,356.69/1,736.68
  6. Step 6: Final answer
    x = 1,434.55

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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.