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Finding the Fourth Proportional to 994.86, 1,492.48 and 301.59

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Solution

The fourth proportional to 994.86, 1,492.48 and 301.59 is: 452.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.86 : 1,492.48 = 301.59 : x
  2. Step 2: Convert to fraction form
    994.86/1,492.48 = 301.59/x
  3. Step 3: Cross multiply
    994.86x = 1,492.48 × 301.59
  4. Step 4: Simplify right side
    994.86x = 450,109.43
  5. Step 5: Solve for x
    x = 450,109.43/994.86
  6. Step 6: Final answer
    x = 452.44

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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.