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Finding the Fourth Proportional to 415,186.29, 622,780.02 and 115,667.73

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Solution

The fourth proportional to 415,186.29, 622,780.02 and 115,667.73 is: 173,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,186.29 : 622,780.02 = 115,667.73 : x
  2. Step 2: Convert to fraction form
    415,186.29/622,780.02 = 115,667.73/x
  3. Step 3: Cross multiply
    415,186.29x = 622,780.02 × 115,667.73
  4. Step 4: Simplify right side
    415,186.29x = 72,035,551,202.75
  5. Step 5: Solve for x
    x = 72,035,551,202.75/415,186.29
  6. Step 6: Final answer
    x = 173,501.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.