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Finding the Fourth Proportional to 325,089.60, 487,634.40 and 269,793.60

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Solution

The fourth proportional to 325,089.60, 487,634.40 and 269,793.60 is: 404,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,089.60 : 487,634.40 = 269,793.60 : x
  2. Step 2: Convert to fraction form
    325,089.60/487,634.40 = 269,793.60/x
  3. Step 3: Cross multiply
    325,089.60x = 487,634.40 × 269,793.60
  4. Step 4: Simplify right side
    325,089.60x = 131,560,640,259.84
  5. Step 5: Solve for x
    x = 131,560,640,259.84/325,089.60
  6. Step 6: Final answer
    x = 404,690.40

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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.