Home / 823,028.40-1,234,542.60-636,404.40

Finding the Fourth Proportional to 823,028.40, 1,234,542.60 and 636,404.40

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Solution

The fourth proportional to 823,028.40, 1,234,542.60 and 636,404.40 is: 954,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,028.40 : 1,234,542.60 = 636,404.40 : x
  2. Step 2: Convert to fraction form
    823,028.40/1,234,542.60 = 636,404.40/x
  3. Step 3: Cross multiply
    823,028.40x = 1,234,542.60 × 636,404.40
  4. Step 4: Simplify right side
    823,028.40x = 785,668,342,627.44
  5. Step 5: Solve for x
    x = 785,668,342,627.44/823,028.40
  6. Step 6: Final answer
    x = 954,606.60

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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.