Home / 340,683.24-470,136.78-189,777

Finding the Fourth Proportional to 340,683.24, 470,136.78 and 189,777

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Solution

The fourth proportional to 340,683.24, 470,136.78 and 189,777 is: 261,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,683.24 : 470,136.78 = 189,777 : x
  2. Step 2: Convert to fraction form
    340,683.24/470,136.78 = 189,777/x
  3. Step 3: Cross multiply
    340,683.24x = 470,136.78 × 189,777
  4. Step 4: Simplify right side
    340,683.24x = 89,221,147,698.06
  5. Step 5: Solve for x
    x = 89,221,147,698.06/340,683.24
  6. Step 6: Final answer
    x = 261,888.87

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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.