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Finding the Fourth Proportional to 412,783.44, 569,647.56 and 231,535.60

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Solution

The fourth proportional to 412,783.44, 569,647.56 and 231,535.60 is: 319,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,783.44 : 569,647.56 = 231,535.60 : x
  2. Step 2: Convert to fraction form
    412,783.44/569,647.56 = 231,535.60/x
  3. Step 3: Cross multiply
    412,783.44x = 569,647.56 × 231,535.60
  4. Step 4: Simplify right side
    412,783.44x = 131,893,689,593.14
  5. Step 5: Solve for x
    x = 131,893,689,593.14/412,783.44
  6. Step 6: Final answer
    x = 319,522.73

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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.