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Finding the Fourth Proportional to 529,556.40, 794,334.60 and 486,010.80

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Solution

The fourth proportional to 529,556.40, 794,334.60 and 486,010.80 is: 729,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,556.40 : 794,334.60 = 486,010.80 : x
  2. Step 2: Convert to fraction form
    529,556.40/794,334.60 = 486,010.80/x
  3. Step 3: Cross multiply
    529,556.40x = 794,334.60 × 486,010.80
  4. Step 4: Simplify right side
    529,556.40x = 386,055,194,413.68
  5. Step 5: Solve for x
    x = 386,055,194,413.68/529,556.40
  6. Step 6: Final answer
    x = 729,016.20

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Similar ratio
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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.