Home / 445,974.30-669,063.60-193,297.20

Finding the Fourth Proportional to 445,974.30, 669,063.60 and 193,297.20

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Solution

The fourth proportional to 445,974.30, 669,063.60 and 193,297.20 is: 289,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,974.30 : 669,063.60 = 193,297.20 : x
  2. Step 2: Convert to fraction form
    445,974.30/669,063.60 = 193,297.20/x
  3. Step 3: Cross multiply
    445,974.30x = 669,063.60 × 193,297.20
  4. Step 4: Simplify right side
    445,974.30x = 129,328,120,501.92
  5. Step 5: Solve for x
    x = 129,328,120,501.92/445,974.30
  6. Step 6: Final answer
    x = 289,990.07

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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.