Home / 931,176.35-1,396,469.28-398,554.37

Finding the Fourth Proportional to 931,176.35, 1,396,469.28 and 398,554.37

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Solution

The fourth proportional to 931,176.35, 1,396,469.28 and 398,554.37 is: 597,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,176.35 : 1,396,469.28 = 398,554.37 : x
  2. Step 2: Convert to fraction form
    931,176.35/1,396,469.28 = 398,554.37/x
  3. Step 3: Cross multiply
    931,176.35x = 1,396,469.28 × 398,554.37
  4. Step 4: Simplify right side
    931,176.35x = 556,568,932,121.98
  5. Step 5: Solve for x
    x = 556,568,932,121.98/931,176.35
  6. Step 6: Final answer
    x = 597,705.18

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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.