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Finding the Fourth Proportional to 531,203.87, 733,040.00 and 289,481.24

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Solution

The fourth proportional to 531,203.87, 733,040.00 and 289,481.24 is: 399,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,203.87 : 733,040.00 = 289,481.24 : x
  2. Step 2: Convert to fraction form
    531,203.87/733,040.00 = 289,481.24/x
  3. Step 3: Cross multiply
    531,203.87x = 733,040.00 × 289,481.24
  4. Step 4: Simplify right side
    531,203.87x = 212,201,323,056.99
  5. Step 5: Solve for x
    x = 212,201,323,056.99/531,203.87
  6. Step 6: Final answer
    x = 399,472.48

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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.