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Finding the Fourth Proportional to 2,328.67, 3,492.26 and 768.31

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Solution

The fourth proportional to 2,328.67, 3,492.26 and 768.31 is: 1,152.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.67 : 3,492.26 = 768.31 : x
  2. Step 2: Convert to fraction form
    2,328.67/3,492.26 = 768.31/x
  3. Step 3: Cross multiply
    2,328.67x = 3,492.26 × 768.31
  4. Step 4: Simplify right side
    2,328.67x = 2,683,134.44
  5. Step 5: Solve for x
    x = 2,683,134.44/2,328.67
  6. Step 6: Final answer
    x = 1,152.22

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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.