Home / 278,016.93-383,629.01-197,415.04

Finding the Fourth Proportional to 278,016.93, 383,629.01 and 197,415.04

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Solution

The fourth proportional to 278,016.93, 383,629.01 and 197,415.04 is: 272,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,016.93 : 383,629.01 = 197,415.04 : x
  2. Step 2: Convert to fraction form
    278,016.93/383,629.01 = 197,415.04/x
  3. Step 3: Cross multiply
    278,016.93x = 383,629.01 × 197,415.04
  4. Step 4: Simplify right side
    278,016.93x = 75,734,136,847.85
  5. Step 5: Solve for x
    x = 75,734,136,847.85/278,016.93
  6. Step 6: Final answer
    x = 272,408.37

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1.5x scale

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.