Home / 851,806.20-1,277,709.30-477,780.60

Finding the Fourth Proportional to 851,806.20, 1,277,709.30 and 477,780.60

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Solution

The fourth proportional to 851,806.20, 1,277,709.30 and 477,780.60 is: 716,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,806.20 : 1,277,709.30 = 477,780.60 : x
  2. Step 2: Convert to fraction form
    851,806.20/1,277,709.30 = 477,780.60/x
  3. Step 3: Cross multiply
    851,806.20x = 1,277,709.30 × 477,780.60
  4. Step 4: Simplify right side
    851,806.20x = 610,464,715,979.58
  5. Step 5: Solve for x
    x = 610,464,715,979.58/851,806.20
  6. Step 6: Final answer
    x = 716,670.90

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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.