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Finding the Fourth Proportional to 531,496.55, 734,165.37 and 393,954.31

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Solution

The fourth proportional to 531,496.55, 734,165.37 and 393,954.31 is: 544,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,496.55 : 734,165.37 = 393,954.31 : x
  2. Step 2: Convert to fraction form
    531,496.55/734,165.37 = 393,954.31/x
  3. Step 3: Cross multiply
    531,496.55x = 734,165.37 × 393,954.31
  4. Step 4: Simplify right side
    531,496.55x = 289,227,611,764.25
  5. Step 5: Solve for x
    x = 289,227,611,764.25/531,496.55
  6. Step 6: Final answer
    x = 544,175.90

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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.