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Finding the Fourth Proportional to 486,087.92, 670,847.72 and 295,057.52

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Solution

The fourth proportional to 486,087.92, 670,847.72 and 295,057.52 is: 407,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,087.92 : 670,847.72 = 295,057.52 : x
  2. Step 2: Convert to fraction form
    486,087.92/670,847.72 = 295,057.52/x
  3. Step 3: Cross multiply
    486,087.92x = 670,847.72 × 295,057.52
  4. Step 4: Simplify right side
    486,087.92x = 197,938,664,560.85
  5. Step 5: Solve for x
    x = 197,938,664,560.85/486,087.92
  6. Step 6: Final answer
    x = 407,207.54

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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.