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Finding the Fourth Proportional to 2,411.84, 3,328.19 and 1,349.43

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Solution

The fourth proportional to 2,411.84, 3,328.19 and 1,349.43 is: 1,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.84 : 3,328.19 = 1,349.43 : x
  2. Step 2: Convert to fraction form
    2,411.84/3,328.19 = 1,349.43/x
  3. Step 3: Cross multiply
    2,411.84x = 3,328.19 × 1,349.43
  4. Step 4: Simplify right side
    2,411.84x = 4,491,159.43
  5. Step 5: Solve for x
    x = 4,491,159.43/2,411.84
  6. Step 6: Final answer
    x = 1,862.13

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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.