Home / 823,359.60-1,235,039.40-423,867.60

Finding the Fourth Proportional to 823,359.60, 1,235,039.40 and 423,867.60

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Solution

The fourth proportional to 823,359.60, 1,235,039.40 and 423,867.60 is: 635,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,359.60 : 1,235,039.40 = 423,867.60 : x
  2. Step 2: Convert to fraction form
    823,359.60/1,235,039.40 = 423,867.60/x
  3. Step 3: Cross multiply
    823,359.60x = 1,235,039.40 × 423,867.60
  4. Step 4: Simplify right side
    823,359.60x = 523,493,186,383.44
  5. Step 5: Solve for x
    x = 523,493,186,383.44/823,359.60
  6. Step 6: Final answer
    x = 635,801.40

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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.