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Finding the Fourth Proportional to 574,891.40, 862,725.90 and 322,171.40

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Solution

The fourth proportional to 574,891.40, 862,725.90 and 322,171.40 is: 483,474.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,891.40 : 862,725.90 = 322,171.40 : x
  2. Step 2: Convert to fraction form
    574,891.40/862,725.90 = 322,171.40/x
  3. Step 3: Cross multiply
    574,891.40x = 862,725.90 × 322,171.40
  4. Step 4: Simplify right side
    574,891.40x = 277,945,611,019.26
  5. Step 5: Solve for x
    x = 277,945,611,019.26/574,891.40
  6. Step 6: Final answer
    x = 483,474.99

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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.