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Finding the Fourth Proportional to 312,233.81, 430,893.08 and 191,351.73

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Solution

The fourth proportional to 312,233.81, 430,893.08 and 191,351.73 is: 264,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,233.81 : 430,893.08 = 191,351.73 : x
  2. Step 2: Convert to fraction form
    312,233.81/430,893.08 = 191,351.73/x
  3. Step 3: Cross multiply
    312,233.81x = 430,893.08 × 191,351.73
  4. Step 4: Simplify right side
    312,233.81x = 82,452,137,679.69
  5. Step 5: Solve for x
    x = 82,452,137,679.69/312,233.81
  6. Step 6: Final answer
    x = 264,071.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.