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Finding the Fourth Proportional to 407,813.38, 562,987.02 and 254,936.62

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Solution

The fourth proportional to 407,813.38, 562,987.02 and 254,936.62 is: 351,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,813.38 : 562,987.02 = 254,936.62 : x
  2. Step 2: Convert to fraction form
    407,813.38/562,987.02 = 254,936.62/x
  3. Step 3: Cross multiply
    407,813.38x = 562,987.02 × 254,936.62
  4. Step 4: Simplify right side
    407,813.38x = 143,526,007,982.67
  5. Step 5: Solve for x
    x = 143,526,007,982.67/407,813.38
  6. Step 6: Final answer
    x = 351,940.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.