Home / 628,229.79-942,344.82-439,059.66

Finding the Fourth Proportional to 628,229.79, 942,344.82 and 439,059.66

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Solution

The fourth proportional to 628,229.79, 942,344.82 and 439,059.66 is: 658,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,229.79 : 942,344.82 = 439,059.66 : x
  2. Step 2: Convert to fraction form
    628,229.79/942,344.82 = 439,059.66/x
  3. Step 3: Cross multiply
    628,229.79x = 942,344.82 × 439,059.66
  4. Step 4: Simplify right side
    628,229.79x = 413,745,596,271.96
  5. Step 5: Solve for x
    x = 413,745,596,271.96/628,229.79
  6. Step 6: Final answer
    x = 658,589.58

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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.