Home / 1,212,793.80-1,819,190.70-413,955.60

Finding the Fourth Proportional to 1,212,793.80, 1,819,190.70 and 413,955.60

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Solution

The fourth proportional to 1,212,793.80, 1,819,190.70 and 413,955.60 is: 620,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,793.80 : 1,819,190.70 = 413,955.60 : x
  2. Step 2: Convert to fraction form
    1,212,793.80/1,819,190.70 = 413,955.60/x
  3. Step 3: Cross multiply
    1,212,793.80x = 1,819,190.70 × 413,955.60
  4. Step 4: Simplify right side
    1,212,793.80x = 753,064,177,732.92
  5. Step 5: Solve for x
    x = 753,064,177,732.92/1,212,793.80
  6. Step 6: Final answer
    x = 620,933.40

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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.