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Finding the Fourth Proportional to 1,074.96, 1,612.53 and 382.01

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Solution

The fourth proportional to 1,074.96, 1,612.53 and 382.01 is: 573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.96 : 1,612.53 = 382.01 : x
  2. Step 2: Convert to fraction form
    1,074.96/1,612.53 = 382.01/x
  3. Step 3: Cross multiply
    1,074.96x = 1,612.53 × 382.01
  4. Step 4: Simplify right side
    1,074.96x = 615,994.52
  5. Step 5: Solve for x
    x = 615,994.52/1,074.96
  6. Step 6: Final answer
    x = 573.04

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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.