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Finding the Fourth Proportional to 994.74, 1,492.92 and 706.92

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Solution

The fourth proportional to 994.74, 1,492.92 and 706.92 is: 1,060.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.74 : 1,492.92 = 706.92 : x
  2. Step 2: Convert to fraction form
    994.74/1,492.92 = 706.92/x
  3. Step 3: Cross multiply
    994.74x = 1,492.92 × 706.92
  4. Step 4: Simplify right side
    994.74x = 1,055,375.01
  5. Step 5: Solve for x
    x = 1,055,375.01/994.74
  6. Step 6: Final answer
    x = 1,060.96

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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.