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Finding the Fourth Proportional to 297,655.66, 410,757.92 and 161,686.56

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Solution

The fourth proportional to 297,655.66, 410,757.92 and 161,686.56 is: 223,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,655.66 : 410,757.92 = 161,686.56 : x
  2. Step 2: Convert to fraction form
    297,655.66/410,757.92 = 161,686.56/x
  3. Step 3: Cross multiply
    297,655.66x = 410,757.92 × 161,686.56
  4. Step 4: Simplify right side
    297,655.66x = 66,414,035,077.56
  5. Step 5: Solve for x
    x = 66,414,035,077.56/297,655.66
  6. Step 6: Final answer
    x = 223,123.71

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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.