Home / 579,220.62-868,519.89-263,748.30

Finding the Fourth Proportional to 579,220.62, 868,519.89 and 263,748.30

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Solution

The fourth proportional to 579,220.62, 868,519.89 and 263,748.30 is: 395,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,220.62 : 868,519.89 = 263,748.30 : x
  2. Step 2: Convert to fraction form
    579,220.62/868,519.89 = 263,748.30/x
  3. Step 3: Cross multiply
    579,220.62x = 868,519.89 × 263,748.30
  4. Step 4: Simplify right side
    579,220.62x = 229,070,644,503.69
  5. Step 5: Solve for x
    x = 229,070,644,503.69/579,220.62
  6. Step 6: Final answer
    x = 395,480.82

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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.