Home / 699,729.21-965,586.34-393,818.33

Finding the Fourth Proportional to 699,729.21, 965,586.34 and 393,818.33

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Solution

The fourth proportional to 699,729.21, 965,586.34 and 393,818.33 is: 543,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,729.21 : 965,586.34 = 393,818.33 : x
  2. Step 2: Convert to fraction form
    699,729.21/965,586.34 = 393,818.33/x
  3. Step 3: Cross multiply
    699,729.21x = 965,586.34 × 393,818.33
  4. Step 4: Simplify right side
    699,729.21x = 380,265,599,889.61
  5. Step 5: Solve for x
    x = 380,265,599,889.61/699,729.21
  6. Step 6: Final answer
    x = 543,446.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.