Home / 280,103.70-419,499.45-190,874.10

Finding the Fourth Proportional to 280,103.70, 419,499.45 and 190,874.10

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Solution

The fourth proportional to 280,103.70, 419,499.45 and 190,874.10 is: 285,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,103.70 : 419,499.45 = 190,874.10 : x
  2. Step 2: Convert to fraction form
    280,103.70/419,499.45 = 190,874.10/x
  3. Step 3: Cross multiply
    280,103.70x = 419,499.45 × 190,874.10
  4. Step 4: Simplify right side
    280,103.70x = 80,071,579,969.25
  5. Step 5: Solve for x
    x = 80,071,579,969.25/280,103.70
  6. Step 6: Final answer
    x = 285,864.06

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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.