Home / 525,180.82-787,771.26-419,504.98

Finding the Fourth Proportional to 525,180.82, 787,771.26 and 419,504.98

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Solution

The fourth proportional to 525,180.82, 787,771.26 and 419,504.98 is: 629,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,180.82 : 787,771.26 = 419,504.98 : x
  2. Step 2: Convert to fraction form
    525,180.82/787,771.26 = 419,504.98/x
  3. Step 3: Cross multiply
    525,180.82x = 787,771.26 × 419,504.98
  4. Step 4: Simplify right side
    525,180.82x = 330,473,966,670.88
  5. Step 5: Solve for x
    x = 330,473,966,670.88/525,180.82
  6. Step 6: Final answer
    x = 629,257.49

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Double scale
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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.