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Finding the Fourth Proportional to 531,754.50, 797,976.82 and 318,361.62

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Solution

The fourth proportional to 531,754.50, 797,976.82 and 318,361.62 is: 477,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,754.50 : 797,976.82 = 318,361.62 : x
  2. Step 2: Convert to fraction form
    531,754.50/797,976.82 = 318,361.62/x
  3. Step 3: Cross multiply
    531,754.50x = 797,976.82 × 318,361.62
  4. Step 4: Simplify right side
    531,754.50x = 254,045,193,137.65
  5. Step 5: Solve for x
    x = 254,045,193,137.65/531,754.50
  6. Step 6: Final answer
    x = 477,749.02

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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.