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Finding the Third Proportional to 335,980.13 and 520,220.81

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Solution

The third proportional to 335,980.13 and 520,220.81 is: 805,493.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,980.13 : 520,220.81 = 520,220.81 : x
  2. Step 2: Convert to fraction form
    335,980.13/520,220.81 = 520,220.81/x
  3. Step 3: Cross multiply
    335,980.13x = 520,220.81 × 520,220.81
  4. Step 4: Simplify right side
    335,980.13x = 270,629,693,758.16
  5. Step 5: Solve for x
    x = 270,629,693,758.16/335,980.13
  6. Step 6: Final answer
    x = 805,493.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.