Home / 1,260,385.20-1,891,806.60-630,010.80

Finding the Fourth Proportional to 1,260,385.20, 1,891,806.60 and 630,010.80

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Solution

The fourth proportional to 1,260,385.20, 1,891,806.60 and 630,010.80 is: 945,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,385.20 : 1,891,806.60 = 630,010.80 : x
  2. Step 2: Convert to fraction form
    1,260,385.20/1,891,806.60 = 630,010.80/x
  3. Step 3: Cross multiply
    1,260,385.20x = 1,891,806.60 × 630,010.80
  4. Step 4: Simplify right side
    1,260,385.20x = 1,191,858,589,511.28
  5. Step 5: Solve for x
    x = 1,191,858,589,511.28/1,260,385.20
  6. Step 6: Final answer
    x = 945,630.42

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Double scale
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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.