Home / 603,563.79-905,455.67-198,778.04

Finding the Fourth Proportional to 603,563.79, 905,455.67 and 198,778.04

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Solution

The fourth proportional to 603,563.79, 905,455.67 and 198,778.04 is: 298,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,563.79 : 905,455.67 = 198,778.04 : x
  2. Step 2: Convert to fraction form
    603,563.79/905,455.67 = 198,778.04/x
  3. Step 3: Cross multiply
    603,563.79x = 905,455.67 × 198,778.04
  4. Step 4: Simplify right side
    603,563.79x = 179,984,697,868.32
  5. Step 5: Solve for x
    x = 179,984,697,868.32/603,563.79
  6. Step 6: Final answer
    x = 298,203.27

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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.