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Finding the Fourth Proportional to 1,199.26, 1,654.93 and 675.19

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Solution

The fourth proportional to 1,199.26, 1,654.93 and 675.19 is: 931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199.26 : 1,654.93 = 675.19 : x
  2. Step 2: Convert to fraction form
    1,199.26/1,654.93 = 675.19/x
  3. Step 3: Cross multiply
    1,199.26x = 1,654.93 × 675.19
  4. Step 4: Simplify right side
    1,199.26x = 1,117,392.19
  5. Step 5: Solve for x
    x = 1,117,392.19/1,199.26
  6. Step 6: Final answer
    x = 931.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.