Home / 823,979.20-1,236,746.40-509,051.20

Finding the Fourth Proportional to 823,979.20, 1,236,746.40 and 509,051.20

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Solution

The fourth proportional to 823,979.20, 1,236,746.40 and 509,051.20 is: 764,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,979.20 : 1,236,746.40 = 509,051.20 : x
  2. Step 2: Convert to fraction form
    823,979.20/1,236,746.40 = 509,051.20/x
  3. Step 3: Cross multiply
    823,979.20x = 1,236,746.40 × 509,051.20
  4. Step 4: Simplify right side
    823,979.20x = 629,567,239,015.68
  5. Step 5: Solve for x
    x = 629,567,239,015.68/823,979.20
  6. Step 6: Final answer
    x = 764,057.20

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Double scale
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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.