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Finding the Fourth Proportional to 312,233.96, 430,893.30 and 191,351.89

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Solution

The fourth proportional to 312,233.96, 430,893.30 and 191,351.89 is: 264,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,233.96 : 430,893.30 = 191,351.89 : x
  2. Step 2: Convert to fraction form
    312,233.96/430,893.30 = 191,351.89/x
  3. Step 3: Cross multiply
    312,233.96x = 430,893.30 × 191,351.89
  4. Step 4: Simplify right side
    312,233.96x = 82,452,247,343.34
  5. Step 5: Solve for x
    x = 82,452,247,343.34/312,233.96
  6. Step 6: Final answer
    x = 264,072.00

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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.