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Finding the Fourth Proportional to 655,995.34, 905,245.60 and 365,591.45

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Solution

The fourth proportional to 655,995.34, 905,245.60 and 365,591.45 is: 504,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,995.34 : 905,245.60 = 365,591.45 : x
  2. Step 2: Convert to fraction form
    655,995.34/905,245.60 = 365,591.45/x
  3. Step 3: Cross multiply
    655,995.34x = 905,245.60 × 365,591.45
  4. Step 4: Simplify right side
    655,995.34x = 330,950,049,682.16
  5. Step 5: Solve for x
    x = 330,950,049,682.16/655,995.34
  6. Step 6: Final answer
    x = 504,500.61

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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.