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Finding the Fourth Proportional to 1,364, 1,882.32 and 743.04

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Solution

The fourth proportional to 1,364, 1,882.32 and 743.04 is: 1,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364 : 1,882.32 = 743.04 : x
  2. Step 2: Convert to fraction form
    1,364/1,882.32 = 743.04/x
  3. Step 3: Cross multiply
    1,364x = 1,882.32 × 743.04
  4. Step 4: Simplify right side
    1,364x = 1,398,639.05
  5. Step 5: Solve for x
    x = 1,398,639.05/1,364
  6. Step 6: Final answer
    x = 1,025.40

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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.