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Finding the Fourth Proportional to 407,860.60, 612,009.60 and 171,227.20

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Solution

The fourth proportional to 407,860.60, 612,009.60 and 171,227.20 is: 256,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,860.60 : 612,009.60 = 171,227.20 : x
  2. Step 2: Convert to fraction form
    407,860.60/612,009.60 = 171,227.20/x
  3. Step 3: Cross multiply
    407,860.60x = 612,009.60 × 171,227.20
  4. Step 4: Simplify right side
    407,860.60x = 104,792,690,181.12
  5. Step 5: Solve for x
    x = 104,792,690,181.12/407,860.60
  6. Step 6: Final answer
    x = 256,932.61

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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.