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Finding the Third Proportional to 348.05 and 741.23

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Solution

The third proportional to 348.05 and 741.23 is: 1,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.05 : 741.23 = 741.23 : x
  2. Step 2: Convert to fraction form
    348.05/741.23 = 741.23/x
  3. Step 3: Cross multiply
    348.05x = 741.23 × 741.23
  4. Step 4: Simplify right side
    348.05x = 549,428.40
  5. Step 5: Solve for x
    x = 549,428.40/348.05
  6. Step 6: Final answer
    x = 1,578.60

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.