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Finding the Fourth Proportional to 321,895.32, 444,212.28 and 178,656.60

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Solution

The fourth proportional to 321,895.32, 444,212.28 and 178,656.60 is: 246,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,895.32 : 444,212.28 = 178,656.60 : x
  2. Step 2: Convert to fraction form
    321,895.32/444,212.28 = 178,656.60/x
  3. Step 3: Cross multiply
    321,895.32x = 444,212.28 × 178,656.60
  4. Step 4: Simplify right side
    321,895.32x = 79,361,455,623.05
  5. Step 5: Solve for x
    x = 79,361,455,623.05/321,895.32
  6. Step 6: Final answer
    x = 246,544.30

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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.