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Finding the Fourth Proportional to 354,100.92, 531,155.07 and 283,472.56

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Solution

The fourth proportional to 354,100.92, 531,155.07 and 283,472.56 is: 425,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,100.92 : 531,155.07 = 283,472.56 : x
  2. Step 2: Convert to fraction form
    354,100.92/531,155.07 = 283,472.56/x
  3. Step 3: Cross multiply
    354,100.92x = 531,155.07 × 283,472.56
  4. Step 4: Simplify right side
    354,100.92x = 150,567,888,113.82
  5. Step 5: Solve for x
    x = 150,567,888,113.82/354,100.92
  6. Step 6: Final answer
    x = 425,211.80

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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.