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Finding the Fourth Proportional to 1,169.83, 1,612.47 and 1,104.22

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Solution

The fourth proportional to 1,169.83, 1,612.47 and 1,104.22 is: 1,522.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.83 : 1,612.47 = 1,104.22 : x
  2. Step 2: Convert to fraction form
    1,169.83/1,612.47 = 1,104.22/x
  3. Step 3: Cross multiply
    1,169.83x = 1,612.47 × 1,104.22
  4. Step 4: Simplify right side
    1,169.83x = 1,780,521.62
  5. Step 5: Solve for x
    x = 1,780,521.62/1,169.83
  6. Step 6: Final answer
    x = 1,522.03

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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.