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Finding the Fourth Proportional to 404,456.20, 606,684.30 and 325,724.20

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Solution

The fourth proportional to 404,456.20, 606,684.30 and 325,724.20 is: 488,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,456.20 : 606,684.30 = 325,724.20 : x
  2. Step 2: Convert to fraction form
    404,456.20/606,684.30 = 325,724.20/x
  3. Step 3: Cross multiply
    404,456.20x = 606,684.30 × 325,724.20
  4. Step 4: Simplify right side
    404,456.20x = 197,611,758,270.06
  5. Step 5: Solve for x
    x = 197,611,758,270.06/404,456.20
  6. Step 6: Final answer
    x = 488,586.30

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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.