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Finding the Fourth Proportional to 1,446.68, 1,996.50 and 922.84

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Solution

The fourth proportional to 1,446.68, 1,996.50 and 922.84 is: 1,273.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.68 : 1,996.50 = 922.84 : x
  2. Step 2: Convert to fraction form
    1,446.68/1,996.50 = 922.84/x
  3. Step 3: Cross multiply
    1,446.68x = 1,996.50 × 922.84
  4. Step 4: Simplify right side
    1,446.68x = 1,842,450.06
  5. Step 5: Solve for x
    x = 1,842,450.06/1,446.68
  6. Step 6: Final answer
    x = 1,273.57

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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.