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Finding the Fourth Proportional to 531,639.28, 796,556.22 and 320,834.26

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Solution

The fourth proportional to 531,639.28, 796,556.22 and 320,834.26 is: 480,706.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,639.28 : 796,556.22 = 320,834.26 : x
  2. Step 2: Convert to fraction form
    531,639.28/796,556.22 = 320,834.26/x
  3. Step 3: Cross multiply
    531,639.28x = 796,556.22 × 320,834.26
  4. Step 4: Simplify right side
    531,639.28x = 255,562,525,392.10
  5. Step 5: Solve for x
    x = 255,562,525,392.10/531,639.28
  6. Step 6: Final answer
    x = 480,706.63

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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.