Home / 1,215,998.40-1,823,997.60-505,790.40

Finding the Fourth Proportional to 1,215,998.40, 1,823,997.60 and 505,790.40

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Solution

The fourth proportional to 1,215,998.40, 1,823,997.60 and 505,790.40 is: 758,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,998.40 : 1,823,997.60 = 505,790.40 : x
  2. Step 2: Convert to fraction form
    1,215,998.40/1,823,997.60 = 505,790.40/x
  3. Step 3: Cross multiply
    1,215,998.40x = 1,823,997.60 × 505,790.40
  4. Step 4: Simplify right side
    1,215,998.40x = 922,560,475,703.04
  5. Step 5: Solve for x
    x = 922,560,475,703.04/1,215,998.40
  6. Step 6: Final answer
    x = 758,685.60

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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.