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Finding the Fourth Proportional to 2,333.76, 3,500.96 and 690.44

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Solution

The fourth proportional to 2,333.76, 3,500.96 and 690.44 is: 1,035.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.76 : 3,500.96 = 690.44 : x
  2. Step 2: Convert to fraction form
    2,333.76/3,500.96 = 690.44/x
  3. Step 3: Cross multiply
    2,333.76x = 3,500.96 × 690.44
  4. Step 4: Simplify right side
    2,333.76x = 2,417,202.82
  5. Step 5: Solve for x
    x = 2,417,202.82/2,333.76
  6. Step 6: Final answer
    x = 1,035.75

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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.