Home / 824,195.20-1,236,292.80-505,330.60

Finding the Fourth Proportional to 824,195.20, 1,236,292.80 and 505,330.60

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Solution

The fourth proportional to 824,195.20, 1,236,292.80 and 505,330.60 is: 757,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,195.20 : 1,236,292.80 = 505,330.60 : x
  2. Step 2: Convert to fraction form
    824,195.20/1,236,292.80 = 505,330.60/x
  3. Step 3: Cross multiply
    824,195.20x = 1,236,292.80 × 505,330.60
  4. Step 4: Simplify right side
    824,195.20x = 624,736,582,399.68
  5. Step 5: Solve for x
    x = 624,736,582,399.68/824,195.20
  6. Step 6: Final answer
    x = 757,995.90

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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.