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Finding the Fourth Proportional to 263,480.72, 395,231.99 and 76,492.22

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Solution

The fourth proportional to 263,480.72, 395,231.99 and 76,492.22 is: 114,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,480.72 : 395,231.99 = 76,492.22 : x
  2. Step 2: Convert to fraction form
    263,480.72/395,231.99 = 76,492.22/x
  3. Step 3: Cross multiply
    263,480.72x = 395,231.99 × 76,492.22
  4. Step 4: Simplify right side
    263,480.72x = 30,232,169,971.50
  5. Step 5: Solve for x
    x = 30,232,169,971.50/263,480.72
  6. Step 6: Final answer
    x = 114,741.49

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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.