Home / 827,298.80-1,240,948.20-512,370.80

Finding the Fourth Proportional to 827,298.80, 1,240,948.20 and 512,370.80

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Solution

The fourth proportional to 827,298.80, 1,240,948.20 and 512,370.80 is: 768,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,298.80 : 1,240,948.20 = 512,370.80 : x
  2. Step 2: Convert to fraction form
    827,298.80/1,240,948.20 = 512,370.80/x
  3. Step 3: Cross multiply
    827,298.80x = 1,240,948.20 × 512,370.80
  4. Step 4: Simplify right side
    827,298.80x = 635,825,621,992.56
  5. Step 5: Solve for x
    x = 635,825,621,992.56/827,298.80
  6. Step 6: Final answer
    x = 768,556.20

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Similar ratio
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1.5x scale

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.