Home / 661,118.58-991,677.87-187,742.43

Finding the Fourth Proportional to 661,118.58, 991,677.87 and 187,742.43

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Solution

The fourth proportional to 661,118.58, 991,677.87 and 187,742.43 is: 281,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,118.58 : 991,677.87 = 187,742.43 : x
  2. Step 2: Convert to fraction form
    661,118.58/991,677.87 = 187,742.43/x
  3. Step 3: Cross multiply
    661,118.58x = 991,677.87 × 187,742.43
  4. Step 4: Simplify right side
    661,118.58x = 186,180,013,091.02
  5. Step 5: Solve for x
    x = 186,180,013,091.02/661,118.58
  6. Step 6: Final answer
    x = 281,613.65

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Similar ratio
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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.