Home / 579,867.52-869,451.78-259,961.51

Finding the Fourth Proportional to 579,867.52, 869,451.78 and 259,961.51

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Solution

The fourth proportional to 579,867.52, 869,451.78 and 259,961.51 is: 389,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,867.52 : 869,451.78 = 259,961.51 : x
  2. Step 2: Convert to fraction form
    579,867.52/869,451.78 = 259,961.51/x
  3. Step 3: Cross multiply
    579,867.52x = 869,451.78 × 259,961.51
  4. Step 4: Simplify right side
    579,867.52x = 226,023,997,600.99
  5. Step 5: Solve for x
    x = 226,023,997,600.99/579,867.52
  6. Step 6: Final answer
    x = 389,785.58

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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.