Home / 1,212,691.20-1,819,036.80-413,998.80

Finding the Fourth Proportional to 1,212,691.20, 1,819,036.80 and 413,998.80

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Solution

The fourth proportional to 1,212,691.20, 1,819,036.80 and 413,998.80 is: 620,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,691.20 : 1,819,036.80 = 413,998.80 : x
  2. Step 2: Convert to fraction form
    1,212,691.20/1,819,036.80 = 413,998.80/x
  3. Step 3: Cross multiply
    1,212,691.20x = 1,819,036.80 × 413,998.80
  4. Step 4: Simplify right side
    1,212,691.20x = 753,079,052,355.84
  5. Step 5: Solve for x
    x = 753,079,052,355.84/1,212,691.20
  6. Step 6: Final answer
    x = 620,998.20

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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.