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Finding the Fourth Proportional to 543,238.20, 813,302.10 and 333,286.20

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Solution

The fourth proportional to 543,238.20, 813,302.10 and 333,286.20 is: 498,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,238.20 : 813,302.10 = 333,286.20 : x
  2. Step 2: Convert to fraction form
    543,238.20/813,302.10 = 333,286.20/x
  3. Step 3: Cross multiply
    543,238.20x = 813,302.10 × 333,286.20
  4. Step 4: Simplify right side
    543,238.20x = 271,062,366,361.02
  5. Step 5: Solve for x
    x = 271,062,366,361.02/543,238.20
  6. Step 6: Final answer
    x = 498,975.16

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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.