Home / 699,729.46-965,586.69-393,818.58

Finding the Fourth Proportional to 699,729.46, 965,586.69 and 393,818.58

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Solution

The fourth proportional to 699,729.46, 965,586.69 and 393,818.58 is: 543,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,729.46 : 965,586.69 = 393,818.58 : x
  2. Step 2: Convert to fraction form
    699,729.46/965,586.69 = 393,818.58/x
  3. Step 3: Cross multiply
    699,729.46x = 965,586.69 × 393,818.58
  4. Step 4: Simplify right side
    699,729.46x = 380,265,979,122.70
  5. Step 5: Solve for x
    x = 380,265,979,122.70/699,729.46
  6. Step 6: Final answer
    x = 543,447.15

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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.