Home / 693,460.20-1,040,190.30-453,959.40

Finding the Fourth Proportional to 693,460.20, 1,040,190.30 and 453,959.40

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Solution

The fourth proportional to 693,460.20, 1,040,190.30 and 453,959.40 is: 680,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,460.20 : 1,040,190.30 = 453,959.40 : x
  2. Step 2: Convert to fraction form
    693,460.20/1,040,190.30 = 453,959.40/x
  3. Step 3: Cross multiply
    693,460.20x = 1,040,190.30 × 453,959.40
  4. Step 4: Simplify right side
    693,460.20x = 472,204,164,473.82
  5. Step 5: Solve for x
    x = 472,204,164,473.82/693,460.20
  6. Step 6: Final answer
    x = 680,939.10

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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.