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Finding the Third Proportional to 306,375.75 and 449,263.13

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Solution

The third proportional to 306,375.75 and 449,263.13 is: 658,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,375.75 : 449,263.13 = 449,263.13 : x
  2. Step 2: Convert to fraction form
    306,375.75/449,263.13 = 449,263.13/x
  3. Step 3: Cross multiply
    306,375.75x = 449,263.13 × 449,263.13
  4. Step 4: Simplify right side
    306,375.75x = 201,837,355,484.77
  5. Step 5: Solve for x
    x = 201,837,355,484.77/306,375.75
  6. Step 6: Final answer
    x = 658,790.25

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.