Home / 823,629.60-1,235,444.40-491,853.60

Finding the Fourth Proportional to 823,629.60, 1,235,444.40 and 491,853.60

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Solution

The fourth proportional to 823,629.60, 1,235,444.40 and 491,853.60 is: 737,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,629.60 : 1,235,444.40 = 491,853.60 : x
  2. Step 2: Convert to fraction form
    823,629.60/1,235,444.40 = 491,853.60/x
  3. Step 3: Cross multiply
    823,629.60x = 1,235,444.40 × 491,853.60
  4. Step 4: Simplify right side
    823,629.60x = 607,657,775,739.84
  5. Step 5: Solve for x
    x = 607,657,775,739.84/823,629.60
  6. Step 6: Final answer
    x = 737,780.40

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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.