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Finding the Fourth Proportional to 362,414.10, 543,621.15 and 306,426.90

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Solution

The fourth proportional to 362,414.10, 543,621.15 and 306,426.90 is: 459,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,414.10 : 543,621.15 = 306,426.90 : x
  2. Step 2: Convert to fraction form
    362,414.10/543,621.15 = 306,426.90/x
  3. Step 3: Cross multiply
    362,414.10x = 543,621.15 × 306,426.90
  4. Step 4: Simplify right side
    362,414.10x = 166,580,143,768.94
  5. Step 5: Solve for x
    x = 166,580,143,768.94/362,414.10
  6. Step 6: Final answer
    x = 459,640.35

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Similar ratio
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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.