Home / 628,819.60-943,229.40-208,040.80

Finding the Fourth Proportional to 628,819.60, 943,229.40 and 208,040.80

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Solution

The fourth proportional to 628,819.60, 943,229.40 and 208,040.80 is: 312,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,819.60 : 943,229.40 = 208,040.80 : x
  2. Step 2: Convert to fraction form
    628,819.60/943,229.40 = 208,040.80/x
  3. Step 3: Cross multiply
    628,819.60x = 943,229.40 × 208,040.80
  4. Step 4: Simplify right side
    628,819.60x = 196,230,198,959.52
  5. Step 5: Solve for x
    x = 196,230,198,959.52/628,819.60
  6. Step 6: Final answer
    x = 312,061.20

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Similar ratio
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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.