Home / 809,856.20-1,214,784.30-360,576.20

Finding the Fourth Proportional to 809,856.20, 1,214,784.30 and 360,576.20

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Solution

The fourth proportional to 809,856.20, 1,214,784.30 and 360,576.20 is: 540,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,856.20 : 1,214,784.30 = 360,576.20 : x
  2. Step 2: Convert to fraction form
    809,856.20/1,214,784.30 = 360,576.20/x
  3. Step 3: Cross multiply
    809,856.20x = 1,214,784.30 × 360,576.20
  4. Step 4: Simplify right side
    809,856.20x = 438,022,306,713.66
  5. Step 5: Solve for x
    x = 438,022,306,713.66/809,856.20
  6. Step 6: Final answer
    x = 540,864.30

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Half scale
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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.