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Finding the Fourth Proportional to 288,191.91, 397,703.30 and 167,362.89

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Solution

The fourth proportional to 288,191.91, 397,703.30 and 167,362.89 is: 230,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,191.91 : 397,703.30 = 167,362.89 : x
  2. Step 2: Convert to fraction form
    288,191.91/397,703.30 = 167,362.89/x
  3. Step 3: Cross multiply
    288,191.91x = 397,703.30 × 167,362.89
  4. Step 4: Simplify right side
    288,191.91x = 66,560,773,650.54
  5. Step 5: Solve for x
    x = 66,560,773,650.54/288,191.91
  6. Step 6: Final answer
    x = 230,959.90

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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.