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Finding the Fourth Proportional to 1,104.44, 1,656.61 and 374

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Solution

The fourth proportional to 1,104.44, 1,656.61 and 374 is: 560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.44 : 1,656.61 = 374 : x
  2. Step 2: Convert to fraction form
    1,104.44/1,656.61 = 374/x
  3. Step 3: Cross multiply
    1,104.44x = 1,656.61 × 374
  4. Step 4: Simplify right side
    1,104.44x = 619,572.14
  5. Step 5: Solve for x
    x = 619,572.14/1,104.44
  6. Step 6: Final answer
    x = 560.98

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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.