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Finding the Fourth Proportional to 269,461.75, 404,191 and 69,781.63

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Solution

The fourth proportional to 269,461.75, 404,191 and 69,781.63 is: 104,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,461.75 : 404,191 = 69,781.63 : x
  2. Step 2: Convert to fraction form
    269,461.75/404,191 = 69,781.63/x
  3. Step 3: Cross multiply
    269,461.75x = 404,191 × 69,781.63
  4. Step 4: Simplify right side
    269,461.75x = 28,205,106,811.33
  5. Step 5: Solve for x
    x = 28,205,106,811.33/269,461.75
  6. Step 6: Final answer
    x = 104,672.02

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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.