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Finding the Fourth Proportional to 1,739.92, 2,401.04 and 994

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Solution

The fourth proportional to 1,739.92, 2,401.04 and 994 is: 1,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.92 : 2,401.04 = 994 : x
  2. Step 2: Convert to fraction form
    1,739.92/2,401.04 = 994/x
  3. Step 3: Cross multiply
    1,739.92x = 2,401.04 × 994
  4. Step 4: Simplify right side
    1,739.92x = 2,386,633.76
  5. Step 5: Solve for x
    x = 2,386,633.76/1,739.92
  6. Step 6: Final answer
    x = 1,371.69

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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.