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Finding the Third Proportional to 205,503.75 and 322,457.63

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Solution

The third proportional to 205,503.75 and 322,457.63 is: 505,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,503.75 : 322,457.63 = 322,457.63 : x
  2. Step 2: Convert to fraction form
    205,503.75/322,457.63 = 322,457.63/x
  3. Step 3: Cross multiply
    205,503.75x = 322,457.63 × 322,457.63
  4. Step 4: Simplify right side
    205,503.75x = 103,978,919,920.64
  5. Step 5: Solve for x
    x = 103,978,919,920.64/205,503.75
  6. Step 6: Final answer
    x = 505,970.91

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.