Home / 397,415.64-595,997.04-131,126.52

Finding the Fourth Proportional to 397,415.64, 595,997.04 and 131,126.52

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Solution

The fourth proportional to 397,415.64, 595,997.04 and 131,126.52 is: 196,648.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,415.64 : 595,997.04 = 131,126.52 : x
  2. Step 2: Convert to fraction form
    397,415.64/595,997.04 = 131,126.52/x
  3. Step 3: Cross multiply
    397,415.64x = 595,997.04 × 131,126.52
  4. Step 4: Simplify right side
    397,415.64x = 78,151,017,785.50
  5. Step 5: Solve for x
    x = 78,151,017,785.50/397,415.64
  6. Step 6: Final answer
    x = 196,648.07

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1.5x scale

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.