Home / 547,743.40-821,615.10-192,754.60

Finding the Fourth Proportional to 547,743.40, 821,615.10 and 192,754.60

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Solution

The fourth proportional to 547,743.40, 821,615.10 and 192,754.60 is: 289,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,743.40 : 821,615.10 = 192,754.60 : x
  2. Step 2: Convert to fraction form
    547,743.40/821,615.10 = 192,754.60/x
  3. Step 3: Cross multiply
    547,743.40x = 821,615.10 × 192,754.60
  4. Step 4: Simplify right side
    547,743.40x = 158,370,089,954.46
  5. Step 5: Solve for x
    x = 158,370,089,954.46/547,743.40
  6. Step 6: Final answer
    x = 289,131.90

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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.