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Finding the Fourth Proportional to 3,478.88, 5,223.90 and 3,303.44

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Solution

The fourth proportional to 3,478.88, 5,223.90 and 3,303.44 is: 4,960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.88 : 5,223.90 = 3,303.44 : x
  2. Step 2: Convert to fraction form
    3,478.88/5,223.90 = 3,303.44/x
  3. Step 3: Cross multiply
    3,478.88x = 5,223.90 × 3,303.44
  4. Step 4: Simplify right side
    3,478.88x = 17,256,840.22
  5. Step 5: Solve for x
    x = 17,256,840.22/3,478.88
  6. Step 6: Final answer
    x = 4,960.46

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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.