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Finding the Fourth Proportional to 313,745.72, 432,968.58 and 170,505.44

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Solution

The fourth proportional to 313,745.72, 432,968.58 and 170,505.44 is: 235,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,745.72 : 432,968.58 = 170,505.44 : x
  2. Step 2: Convert to fraction form
    313,745.72/432,968.58 = 170,505.44/x
  3. Step 3: Cross multiply
    313,745.72x = 432,968.58 × 170,505.44
  4. Step 4: Simplify right side
    313,745.72x = 73,823,498,239.08
  5. Step 5: Solve for x
    x = 73,823,498,239.08/313,745.72
  6. Step 6: Final answer
    x = 235,297.23

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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.