Home / 789,211.53-1,183,828.23-256,735.35

Finding the Fourth Proportional to 789,211.53, 1,183,828.23 and 256,735.35

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Solution

The fourth proportional to 789,211.53, 1,183,828.23 and 256,735.35 is: 385,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,211.53 : 1,183,828.23 = 256,735.35 : x
  2. Step 2: Convert to fraction form
    789,211.53/1,183,828.23 = 256,735.35/x
  3. Step 3: Cross multiply
    789,211.53x = 1,183,828.23 × 256,735.35
  4. Step 4: Simplify right side
    789,211.53x = 303,930,554,968.93
  5. Step 5: Solve for x
    x = 303,930,554,968.93/789,211.53
  6. Step 6: Final answer
    x = 385,106.58

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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.