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Finding the Fourth Proportional to 1,193.96, 1,788.42 and 975.20

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Solution

The fourth proportional to 1,193.96, 1,788.42 and 975.20 is: 1,460.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.96 : 1,788.42 = 975.20 : x
  2. Step 2: Convert to fraction form
    1,193.96/1,788.42 = 975.20/x
  3. Step 3: Cross multiply
    1,193.96x = 1,788.42 × 975.20
  4. Step 4: Simplify right side
    1,193.96x = 1,744,067.18
  5. Step 5: Solve for x
    x = 1,744,067.18/1,193.96
  6. Step 6: Final answer
    x = 1,460.74

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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.