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Finding the Fourth Proportional to 1,855.23, 2,783.22 and 622.61

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Solution

The fourth proportional to 1,855.23, 2,783.22 and 622.61 is: 934.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.23 : 2,783.22 = 622.61 : x
  2. Step 2: Convert to fraction form
    1,855.23/2,783.22 = 622.61/x
  3. Step 3: Cross multiply
    1,855.23x = 2,783.22 × 622.61
  4. Step 4: Simplify right side
    1,855.23x = 1,732,860.60
  5. Step 5: Solve for x
    x = 1,732,860.60/1,855.23
  6. Step 6: Final answer
    x = 934.04

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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.