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Finding the Fourth Proportional to 2,333.53, 3,500.80 and 690.21

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Solution

The fourth proportional to 2,333.53, 3,500.80 and 690.21 is: 1,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.53 : 3,500.80 = 690.21 : x
  2. Step 2: Convert to fraction form
    2,333.53/3,500.80 = 690.21/x
  3. Step 3: Cross multiply
    2,333.53x = 3,500.80 × 690.21
  4. Step 4: Simplify right side
    2,333.53x = 2,416,287.17
  5. Step 5: Solve for x
    x = 2,416,287.17/2,333.53
  6. Step 6: Final answer
    x = 1,035.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.