Home / 768,418.52-1,059,431.60-630,087.73

Finding the Fourth Proportional to 768,418.52, 1,059,431.60 and 630,087.73

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Solution

The fourth proportional to 768,418.52, 1,059,431.60 and 630,087.73 is: 868,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,418.52 : 1,059,431.60 = 630,087.73 : x
  2. Step 2: Convert to fraction form
    768,418.52/1,059,431.60 = 630,087.73/x
  3. Step 3: Cross multiply
    768,418.52x = 1,059,431.60 × 630,087.73
  4. Step 4: Simplify right side
    768,418.52x = 667,534,850,860.91
  5. Step 5: Solve for x
    x = 667,534,850,860.91/768,418.52
  6. Step 6: Final answer
    x = 868,712.61

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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.