Home / 721,583.08-995,890.25-415,600.61

Finding the Fourth Proportional to 721,583.08, 995,890.25 and 415,600.61

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Solution

The fourth proportional to 721,583.08, 995,890.25 and 415,600.61 is: 573,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,583.08 : 995,890.25 = 415,600.61 : x
  2. Step 2: Convert to fraction form
    721,583.08/995,890.25 = 415,600.61/x
  3. Step 3: Cross multiply
    721,583.08x = 995,890.25 × 415,600.61
  4. Step 4: Simplify right side
    721,583.08x = 413,892,591,452.60
  5. Step 5: Solve for x
    x = 413,892,591,452.60/721,583.08
  6. Step 6: Final answer
    x = 573,589.66

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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.