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Finding the Fourth Proportional to 2,393.22, 3,590.19 and 749.55

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Solution

The fourth proportional to 2,393.22, 3,590.19 and 749.55 is: 1,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.22 : 3,590.19 = 749.55 : x
  2. Step 2: Convert to fraction form
    2,393.22/3,590.19 = 749.55/x
  3. Step 3: Cross multiply
    2,393.22x = 3,590.19 × 749.55
  4. Step 4: Simplify right side
    2,393.22x = 2,691,026.91
  5. Step 5: Solve for x
    x = 2,691,026.91/2,393.22
  6. Step 6: Final answer
    x = 1,124.44

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1.5x scale

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.