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Finding the Fourth Proportional to 2,259.49, 3,387.99 and 699.06

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Solution

The fourth proportional to 2,259.49, 3,387.99 and 699.06 is: 1,048.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.49 : 3,387.99 = 699.06 : x
  2. Step 2: Convert to fraction form
    2,259.49/3,387.99 = 699.06/x
  3. Step 3: Cross multiply
    2,259.49x = 3,387.99 × 699.06
  4. Step 4: Simplify right side
    2,259.49x = 2,368,408.29
  5. Step 5: Solve for x
    x = 2,368,408.29/2,259.49
  6. Step 6: Final answer
    x = 1,048.20

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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.