Home / 545,741.20-818,611.80-190,791.10

Finding the Fourth Proportional to 545,741.20, 818,611.80 and 190,791.10

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Solution

The fourth proportional to 545,741.20, 818,611.80 and 190,791.10 is: 286,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,741.20 : 818,611.80 = 190,791.10 : x
  2. Step 2: Convert to fraction form
    545,741.20/818,611.80 = 190,791.10/x
  3. Step 3: Cross multiply
    545,741.20x = 818,611.80 × 190,791.10
  4. Step 4: Simplify right side
    545,741.20x = 156,183,845,794.98
  5. Step 5: Solve for x
    x = 156,183,845,794.98/545,741.20
  6. Step 6: Final answer
    x = 286,186.65

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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.