Home / 579,221.12-868,520.64-263,748.80

Finding the Fourth Proportional to 579,221.12, 868,520.64 and 263,748.80

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Solution

The fourth proportional to 579,221.12, 868,520.64 and 263,748.80 is: 395,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,221.12 : 868,520.64 = 263,748.80 : x
  2. Step 2: Convert to fraction form
    579,221.12/868,520.64 = 263,748.80/x
  3. Step 3: Cross multiply
    579,221.12x = 868,520.64 × 263,748.80
  4. Step 4: Simplify right side
    579,221.12x = 229,071,276,575.23
  5. Step 5: Solve for x
    x = 229,071,276,575.23/579,221.12
  6. Step 6: Final answer
    x = 395,481.57

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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.