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Finding the Fourth Proportional to 943.97, 1,416.69 and 895.81

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Solution

The fourth proportional to 943.97, 1,416.69 and 895.81 is: 1,344.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.97 : 1,416.69 = 895.81 : x
  2. Step 2: Convert to fraction form
    943.97/1,416.69 = 895.81/x
  3. Step 3: Cross multiply
    943.97x = 1,416.69 × 895.81
  4. Step 4: Simplify right side
    943.97x = 1,269,085.07
  5. Step 5: Solve for x
    x = 1,269,085.07/943.97
  6. Step 6: Final answer
    x = 1,344.41

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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.