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Finding the Third Proportional to 335,900 and 520,076

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Solution

The third proportional to 335,900 and 520,076 is: 805,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,900 : 520,076 = 520,076 : x
  2. Step 2: Convert to fraction form
    335,900/520,076 = 520,076/x
  3. Step 3: Cross multiply
    335,900x = 520,076 × 520,076
  4. Step 4: Simplify right side
    335,900x = 270,479,045,776
  5. Step 5: Solve for x
    x = 270,479,045,776/335,900
  6. Step 6: Final answer
    x = 805,236.81

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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.