Home / 397,611.21-596,288.03-131,307.51

Finding the Fourth Proportional to 397,611.21, 596,288.03 and 131,307.51

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Solution

The fourth proportional to 397,611.21, 596,288.03 and 131,307.51 is: 196,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,611.21 : 596,288.03 = 131,307.51 : x
  2. Step 2: Convert to fraction form
    397,611.21/596,288.03 = 131,307.51/x
  3. Step 3: Cross multiply
    397,611.21x = 596,288.03 × 131,307.51
  4. Step 4: Simplify right side
    397,611.21x = 78,297,095,805.57
  5. Step 5: Solve for x
    x = 78,297,095,805.57/397,611.21
  6. Step 6: Final answer
    x = 196,918.73

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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.