Home / 823,937.40-1,235,906.10-262,990.20

Finding the Fourth Proportional to 823,937.40, 1,235,906.10 and 262,990.20

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Solution

The fourth proportional to 823,937.40, 1,235,906.10 and 262,990.20 is: 394,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,937.40 : 1,235,906.10 = 262,990.20 : x
  2. Step 2: Convert to fraction form
    823,937.40/1,235,906.10 = 262,990.20/x
  3. Step 3: Cross multiply
    823,937.40x = 1,235,906.10 × 262,990.20
  4. Step 4: Simplify right side
    823,937.40x = 325,031,192,420.22
  5. Step 5: Solve for x
    x = 325,031,192,420.22/823,937.40
  6. Step 6: Final answer
    x = 394,485.30

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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.