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Finding the Fourth Proportional to 313,794.20, 433,040.40 and 170,554.20

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Solution

The fourth proportional to 313,794.20, 433,040.40 and 170,554.20 is: 235,367.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,794.20 : 433,040.40 = 170,554.20 : x
  2. Step 2: Convert to fraction form
    313,794.20/433,040.40 = 170,554.20/x
  3. Step 3: Cross multiply
    313,794.20x = 433,040.40 × 170,554.20
  4. Step 4: Simplify right side
    313,794.20x = 73,856,858,989.68
  5. Step 5: Solve for x
    x = 73,856,858,989.68/313,794.20
  6. Step 6: Final answer
    x = 235,367.19

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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.