Home / 628,236.91-942,355.52-439,066.78

Finding the Fourth Proportional to 628,236.91, 942,355.52 and 439,066.78

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Solution

The fourth proportional to 628,236.91, 942,355.52 and 439,066.78 is: 658,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,236.91 : 942,355.52 = 439,066.78 : x
  2. Step 2: Convert to fraction form
    628,236.91/942,355.52 = 439,066.78/x
  3. Step 3: Cross multiply
    628,236.91x = 942,355.52 × 439,066.78
  4. Step 4: Simplify right side
    628,236.91x = 413,757,000,876.90
  5. Step 5: Solve for x
    x = 413,757,000,876.90/628,236.91
  6. Step 6: Final answer
    x = 658,600.27

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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.