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Finding the Fourth Proportional to 3,604.98, 5,409.04 and 1,412.95

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Solution

The fourth proportional to 3,604.98, 5,409.04 and 1,412.95 is: 2,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.98 : 5,409.04 = 1,412.95 : x
  2. Step 2: Convert to fraction form
    3,604.98/5,409.04 = 1,412.95/x
  3. Step 3: Cross multiply
    3,604.98x = 5,409.04 × 1,412.95
  4. Step 4: Simplify right side
    3,604.98x = 7,642,703.07
  5. Step 5: Solve for x
    x = 7,642,703.07/3,604.98
  6. Step 6: Final answer
    x = 2,120.04

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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.