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Finding the Fourth Proportional to 1,394.14, 1,924.17 and 951.76

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Solution

The fourth proportional to 1,394.14, 1,924.17 and 951.76 is: 1,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.14 : 1,924.17 = 951.76 : x
  2. Step 2: Convert to fraction form
    1,394.14/1,924.17 = 951.76/x
  3. Step 3: Cross multiply
    1,394.14x = 1,924.17 × 951.76
  4. Step 4: Simplify right side
    1,394.14x = 1,831,348.04
  5. Step 5: Solve for x
    x = 1,831,348.04/1,394.14
  6. Step 6: Final answer
    x = 1,313.60

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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.