Home / 699,196.03-964,919.34-393,286.69

Finding the Fourth Proportional to 699,196.03, 964,919.34 and 393,286.69

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Solution

The fourth proportional to 699,196.03, 964,919.34 and 393,286.69 is: 542,751.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,196.03 : 964,919.34 = 393,286.69 : x
  2. Step 2: Convert to fraction form
    699,196.03/964,919.34 = 393,286.69/x
  3. Step 3: Cross multiply
    699,196.03x = 964,919.34 × 393,286.69
  4. Step 4: Simplify right side
    699,196.03x = 379,489,933,345.59
  5. Step 5: Solve for x
    x = 379,489,933,345.59/699,196.03
  6. Step 6: Final answer
    x = 542,751.84

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Double scale
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1.5x scale

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.