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Finding the Fourth Proportional to 620,993.33, 931,396.41 and 397,912.67

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Solution

The fourth proportional to 620,993.33, 931,396.41 and 397,912.67 is: 596,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,993.33 : 931,396.41 = 397,912.67 : x
  2. Step 2: Convert to fraction form
    620,993.33/931,396.41 = 397,912.67/x
  3. Step 3: Cross multiply
    620,993.33x = 931,396.41 × 397,912.67
  4. Step 4: Simplify right side
    620,993.33x = 370,614,427,674.53
  5. Step 5: Solve for x
    x = 370,614,427,674.53/620,993.33
  6. Step 6: Final answer
    x = 596,809.03

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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.