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Finding the Fourth Proportional to 1,492.73, 2,237.73 and 943.28

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Solution

The fourth proportional to 1,492.73, 2,237.73 and 943.28 is: 1,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.73 : 2,237.73 = 943.28 : x
  2. Step 2: Convert to fraction form
    1,492.73/2,237.73 = 943.28/x
  3. Step 3: Cross multiply
    1,492.73x = 2,237.73 × 943.28
  4. Step 4: Simplify right side
    1,492.73x = 2,110,805.95
  5. Step 5: Solve for x
    x = 2,110,805.95/1,492.73
  6. Step 6: Final answer
    x = 1,414.06

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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.