Home / 620,819.66-856,748.33-348,912.38

Finding the Fourth Proportional to 620,819.66, 856,748.33 and 348,912.38

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Solution

The fourth proportional to 620,819.66, 856,748.33 and 348,912.38 is: 481,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,819.66 : 856,748.33 = 348,912.38 : x
  2. Step 2: Convert to fraction form
    620,819.66/856,748.33 = 348,912.38/x
  3. Step 3: Cross multiply
    620,819.66x = 856,748.33 × 348,912.38
  4. Step 4: Simplify right side
    620,819.66x = 298,930,092,853.02
  5. Step 5: Solve for x
    x = 298,930,092,853.02/620,819.66
  6. Step 6: Final answer
    x = 481,508.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.