Home / 699,540.10-965,526.70-409,286.74

Finding the Fourth Proportional to 699,540.10, 965,526.70 and 409,286.74

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Solution

The fourth proportional to 699,540.10, 965,526.70 and 409,286.74 is: 564,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,540.10 : 965,526.70 = 409,286.74 : x
  2. Step 2: Convert to fraction form
    699,540.10/965,526.70 = 409,286.74/x
  3. Step 3: Cross multiply
    699,540.10x = 965,526.70 × 409,286.74
  4. Step 4: Simplify right side
    699,540.10x = 395,177,275,425.96
  5. Step 5: Solve for x
    x = 395,177,275,425.96/699,540.10
  6. Step 6: Final answer
    x = 564,910.11

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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.