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Finding the Fourth Proportional to 3,396.95, 4,689.11 and 3,303.32

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Solution

The fourth proportional to 3,396.95, 4,689.11 and 3,303.32 is: 4,559.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.95 : 4,689.11 = 3,303.32 : x
  2. Step 2: Convert to fraction form
    3,396.95/4,689.11 = 3,303.32/x
  3. Step 3: Cross multiply
    3,396.95x = 4,689.11 × 3,303.32
  4. Step 4: Simplify right side
    3,396.95x = 15,489,650.83
  5. Step 5: Solve for x
    x = 15,489,650.83/3,396.95
  6. Step 6: Final answer
    x = 4,559.88

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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.