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Finding the Fourth Proportional to 1,696.96, 2,342.08 and 1,015.55

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Solution

The fourth proportional to 1,696.96, 2,342.08 and 1,015.55 is: 1,401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.96 : 2,342.08 = 1,015.55 : x
  2. Step 2: Convert to fraction form
    1,696.96/2,342.08 = 1,015.55/x
  3. Step 3: Cross multiply
    1,696.96x = 2,342.08 × 1,015.55
  4. Step 4: Simplify right side
    1,696.96x = 2,378,499.34
  5. Step 5: Solve for x
    x = 2,378,499.34/1,696.96
  6. Step 6: Final answer
    x = 1,401.62

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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.