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Finding the Fourth Proportional to 1,203.94, 1,804.26 and 1,084.06

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Solution

The fourth proportional to 1,203.94, 1,804.26 and 1,084.06 is: 1,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.94 : 1,804.26 = 1,084.06 : x
  2. Step 2: Convert to fraction form
    1,203.94/1,804.26 = 1,084.06/x
  3. Step 3: Cross multiply
    1,203.94x = 1,804.26 × 1,084.06
  4. Step 4: Simplify right side
    1,203.94x = 1,955,926.10
  5. Step 5: Solve for x
    x = 1,955,926.10/1,203.94
  6. Step 6: Final answer
    x = 1,624.60

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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.