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Finding the Fourth Proportional to 331,057.80, 496,845.90 and 153,586.80

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Solution

The fourth proportional to 331,057.80, 496,845.90 and 153,586.80 is: 230,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,057.80 : 496,845.90 = 153,586.80 : x
  2. Step 2: Convert to fraction form
    331,057.80/496,845.90 = 153,586.80/x
  3. Step 3: Cross multiply
    331,057.80x = 496,845.90 × 153,586.80
  4. Step 4: Simplify right side
    331,057.80x = 76,308,971,874.12
  5. Step 5: Solve for x
    x = 76,308,971,874.12/331,057.80
  6. Step 6: Final answer
    x = 230,500.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.