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Finding the Fourth Proportional to 654,534.46, 980,227.05 and 373,198.78

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Solution

The fourth proportional to 654,534.46, 980,227.05 and 373,198.78 is: 558,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,534.46 : 980,227.05 = 373,198.78 : x
  2. Step 2: Convert to fraction form
    654,534.46/980,227.05 = 373,198.78/x
  3. Step 3: Cross multiply
    654,534.46x = 980,227.05 × 373,198.78
  4. Step 4: Simplify right side
    654,534.46x = 365,819,539,183.00
  5. Step 5: Solve for x
    x = 365,819,539,183.00/654,534.46
  6. Step 6: Final answer
    x = 558,900.35

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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.