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Finding the Fourth Proportional to 547,324.52, 755,300 and 305,610.90

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Solution

The fourth proportional to 547,324.52, 755,300 and 305,610.90 is: 421,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,324.52 : 755,300 = 305,610.90 : x
  2. Step 2: Convert to fraction form
    547,324.52/755,300 = 305,610.90/x
  3. Step 3: Cross multiply
    547,324.52x = 755,300 × 305,610.90
  4. Step 4: Simplify right side
    547,324.52x = 230,827,912,770.00
  5. Step 5: Solve for x
    x = 230,827,912,770.00/547,324.52
  6. Step 6: Final answer
    x = 421,738.67

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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.