Home / 800,233.40-1,200,350.10-661,993.40

Finding the Fourth Proportional to 800,233.40, 1,200,350.10 and 661,993.40

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Solution

The fourth proportional to 800,233.40, 1,200,350.10 and 661,993.40 is: 992,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,233.40 : 1,200,350.10 = 661,993.40 : x
  2. Step 2: Convert to fraction form
    800,233.40/1,200,350.10 = 661,993.40/x
  3. Step 3: Cross multiply
    800,233.40x = 1,200,350.10 × 661,993.40
  4. Step 4: Simplify right side
    800,233.40x = 794,623,843,889.34
  5. Step 5: Solve for x
    x = 794,623,843,889.34/800,233.40
  6. Step 6: Final answer
    x = 992,990.10

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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.