Home / 828,010.20-1,242,015.30-576,067.80

Finding the Fourth Proportional to 828,010.20, 1,242,015.30 and 576,067.80

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Solution

The fourth proportional to 828,010.20, 1,242,015.30 and 576,067.80 is: 864,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,010.20 : 1,242,015.30 = 576,067.80 : x
  2. Step 2: Convert to fraction form
    828,010.20/1,242,015.30 = 576,067.80/x
  3. Step 3: Cross multiply
    828,010.20x = 1,242,015.30 × 576,067.80
  4. Step 4: Simplify right side
    828,010.20x = 715,485,021,437.34
  5. Step 5: Solve for x
    x = 715,485,021,437.34/828,010.20
  6. Step 6: Final answer
    x = 864,101.70

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Double scale
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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.