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Finding the Fourth Proportional to 3,674.70, 5,510.88 and 1,208.95

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Solution

The fourth proportional to 3,674.70, 5,510.88 and 1,208.95 is: 1,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.70 : 5,510.88 = 1,208.95 : x
  2. Step 2: Convert to fraction form
    3,674.70/5,510.88 = 1,208.95/x
  3. Step 3: Cross multiply
    3,674.70x = 5,510.88 × 1,208.95
  4. Step 4: Simplify right side
    3,674.70x = 6,662,364.60
  5. Step 5: Solve for x
    x = 6,662,364.60/3,674.70
  6. Step 6: Final answer
    x = 1,813.04

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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.