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Finding the Fourth Proportional to 1,674.97, 2,309.76 and 1,011.44

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Solution

The fourth proportional to 1,674.97, 2,309.76 and 1,011.44 is: 1,394.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.97 : 2,309.76 = 1,011.44 : x
  2. Step 2: Convert to fraction form
    1,674.97/2,309.76 = 1,011.44/x
  3. Step 3: Cross multiply
    1,674.97x = 2,309.76 × 1,011.44
  4. Step 4: Simplify right side
    1,674.97x = 2,336,189.43
  5. Step 5: Solve for x
    x = 2,336,189.43/1,674.97
  6. Step 6: Final answer
    x = 1,394.77

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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.