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Finding the Fourth Proportional to 412,672.77, 569,481.20 and 231,384.13

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Solution

The fourth proportional to 412,672.77, 569,481.20 and 231,384.13 is: 319,306.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,672.77 : 569,481.20 = 231,384.13 : x
  2. Step 2: Convert to fraction form
    412,672.77/569,481.20 = 231,384.13/x
  3. Step 3: Cross multiply
    412,672.77x = 569,481.20 × 231,384.13
  4. Step 4: Simplify right side
    412,672.77x = 131,768,912,858.60
  5. Step 5: Solve for x
    x = 131,768,912,858.60/412,672.77
  6. Step 6: Final answer
    x = 319,306.06

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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.