Home / 1,998,662.80-2,997,119.40-800,186.80

Finding the Fourth Proportional to 1,998,662.80, 2,997,119.40 and 800,186.80

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Solution

The fourth proportional to 1,998,662.80, 2,997,119.40 and 800,186.80 is: 1,199,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,662.80 : 2,997,119.40 = 800,186.80 : x
  2. Step 2: Convert to fraction form
    1,998,662.80/2,997,119.40 = 800,186.80/x
  3. Step 3: Cross multiply
    1,998,662.80x = 2,997,119.40 × 800,186.80
  4. Step 4: Simplify right side
    1,998,662.80x = 2,398,255,381,903.92
  5. Step 5: Solve for x
    x = 2,398,255,381,903.92/1,998,662.80
  6. Step 6: Final answer
    x = 1,199,929.96

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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.