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Finding the Fourth Proportional to 1,370.49, 2,056.04 and 396.52

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Solution

The fourth proportional to 1,370.49, 2,056.04 and 396.52 is: 594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.49 : 2,056.04 = 396.52 : x
  2. Step 2: Convert to fraction form
    1,370.49/2,056.04 = 396.52/x
  3. Step 3: Cross multiply
    1,370.49x = 2,056.04 × 396.52
  4. Step 4: Simplify right side
    1,370.49x = 815,260.98
  5. Step 5: Solve for x
    x = 815,260.98/1,370.49
  6. Step 6: Final answer
    x = 594.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.