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Finding the Third Proportional to 380.53 and 832.36

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Solution

The third proportional to 380.53 and 832.36 is: 1,820.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.53 : 832.36 = 832.36 : x
  2. Step 2: Convert to fraction form
    380.53/832.36 = 832.36/x
  3. Step 3: Cross multiply
    380.53x = 832.36 × 832.36
  4. Step 4: Simplify right side
    380.53x = 692,822.13
  5. Step 5: Solve for x
    x = 692,822.13/380.53
  6. Step 6: Final answer
    x = 1,820.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.