Home / 816,959.76-1,126,944.30-490,188.24

Finding the Fourth Proportional to 816,959.76, 1,126,944.30 and 490,188.24

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Solution

The fourth proportional to 816,959.76, 1,126,944.30 and 490,188.24 is: 676,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,959.76 : 1,126,944.30 = 490,188.24 : x
  2. Step 2: Convert to fraction form
    816,959.76/1,126,944.30 = 490,188.24/x
  3. Step 3: Cross multiply
    816,959.76x = 1,126,944.30 × 490,188.24
  4. Step 4: Simplify right side
    816,959.76x = 552,414,842,995.03
  5. Step 5: Solve for x
    x = 552,414,842,995.03/816,959.76
  6. Step 6: Final answer
    x = 676,183.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.