Home / 818,793.60-1,228,190.40-579,645.15

Finding the Fourth Proportional to 818,793.60, 1,228,190.40 and 579,645.15

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Solution

The fourth proportional to 818,793.60, 1,228,190.40 and 579,645.15 is: 869,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,793.60 : 1,228,190.40 = 579,645.15 : x
  2. Step 2: Convert to fraction form
    818,793.60/1,228,190.40 = 579,645.15/x
  3. Step 3: Cross multiply
    818,793.60x = 1,228,190.40 × 579,645.15
  4. Step 4: Simplify right side
    818,793.60x = 711,914,608,636.56
  5. Step 5: Solve for x
    x = 711,914,608,636.56/818,793.60
  6. Step 6: Final answer
    x = 869,467.73

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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.