Home / 823,346.20-1,235,019.30-557,234.20

Finding the Fourth Proportional to 823,346.20, 1,235,019.30 and 557,234.20

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Solution

The fourth proportional to 823,346.20, 1,235,019.30 and 557,234.20 is: 835,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,346.20 : 1,235,019.30 = 557,234.20 : x
  2. Step 2: Convert to fraction form
    823,346.20/1,235,019.30 = 557,234.20/x
  3. Step 3: Cross multiply
    823,346.20x = 1,235,019.30 × 557,234.20
  4. Step 4: Simplify right side
    823,346.20x = 688,194,991,620.06
  5. Step 5: Solve for x
    x = 688,194,991,620.06/823,346.20
  6. Step 6: Final answer
    x = 835,851.30

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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.