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Finding the Fourth Proportional to 1,197.19, 1,794.14 and 904.45

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Solution

The fourth proportional to 1,197.19, 1,794.14 and 904.45 is: 1,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.19 : 1,794.14 = 904.45 : x
  2. Step 2: Convert to fraction form
    1,197.19/1,794.14 = 904.45/x
  3. Step 3: Cross multiply
    1,197.19x = 1,794.14 × 904.45
  4. Step 4: Simplify right side
    1,197.19x = 1,622,707.70
  5. Step 5: Solve for x
    x = 1,622,707.70/1,197.19
  6. Step 6: Final answer
    x = 1,355.43

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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.