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Finding the Fourth Proportional to 2,333.30, 3,498.91 and 689.27

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Solution

The fourth proportional to 2,333.30, 3,498.91 and 689.27 is: 1,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.30 : 3,498.91 = 689.27 : x
  2. Step 2: Convert to fraction form
    2,333.30/3,498.91 = 689.27/x
  3. Step 3: Cross multiply
    2,333.30x = 3,498.91 × 689.27
  4. Step 4: Simplify right side
    2,333.30x = 2,411,700.72
  5. Step 5: Solve for x
    x = 2,411,700.72/2,333.30
  6. Step 6: Final answer
    x = 1,033.60

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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.