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Finding the Fourth Proportional to 263,486.19, 395,230.32 and 63,806.25

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Solution

The fourth proportional to 263,486.19, 395,230.32 and 63,806.25 is: 95,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,486.19 : 395,230.32 = 63,806.25 : x
  2. Step 2: Convert to fraction form
    263,486.19/395,230.32 = 63,806.25/x
  3. Step 3: Cross multiply
    263,486.19x = 395,230.32 × 63,806.25
  4. Step 4: Simplify right side
    263,486.19x = 25,218,164,605.50
  5. Step 5: Solve for x
    x = 25,218,164,605.50/263,486.19
  6. Step 6: Final answer
    x = 95,709.63

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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.