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Finding the Fourth Proportional to 484,744.89, 725,091.85 and 340,640.27

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Solution

The fourth proportional to 484,744.89, 725,091.85 and 340,640.27 is: 509,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,744.89 : 725,091.85 = 340,640.27 : x
  2. Step 2: Convert to fraction form
    484,744.89/725,091.85 = 340,640.27/x
  3. Step 3: Cross multiply
    484,744.89x = 725,091.85 × 340,640.27
  4. Step 4: Simplify right side
    484,744.89x = 246,995,483,078.24
  5. Step 5: Solve for x
    x = 246,995,483,078.24/484,744.89
  6. Step 6: Final answer
    x = 509,537.06

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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.