Home / 445,942.40-669,015.72-193,265.33

Finding the Fourth Proportional to 445,942.40, 669,015.72 and 193,265.33

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Solution

The fourth proportional to 445,942.40, 669,015.72 and 193,265.33 is: 289,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,942.40 : 669,015.72 = 193,265.33 : x
  2. Step 2: Convert to fraction form
    445,942.40/669,015.72 = 193,265.33/x
  3. Step 3: Cross multiply
    445,942.40x = 669,015.72 × 193,265.33
  4. Step 4: Simplify right side
    445,942.40x = 129,297,540,555.91
  5. Step 5: Solve for x
    x = 129,297,540,555.91/445,942.40
  6. Step 6: Final answer
    x = 289,942.25

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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.