Home / 1,276,893.20-1,915,339.80-828,995.60

Finding the Fourth Proportional to 1,276,893.20, 1,915,339.80 and 828,995.60

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Solution

The fourth proportional to 1,276,893.20, 1,915,339.80 and 828,995.60 is: 1,243,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,893.20 : 1,915,339.80 = 828,995.60 : x
  2. Step 2: Convert to fraction form
    1,276,893.20/1,915,339.80 = 828,995.60/x
  3. Step 3: Cross multiply
    1,276,893.20x = 1,915,339.80 × 828,995.60
  4. Step 4: Simplify right side
    1,276,893.20x = 1,587,808,266,704.88
  5. Step 5: Solve for x
    x = 1,587,808,266,704.88/1,276,893.20
  6. Step 6: Final answer
    x = 1,243,493.40

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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.