Home / 385,819.83-532,615.97-256,972.73

Finding the Fourth Proportional to 385,819.83, 532,615.97 and 256,972.73

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Solution

The fourth proportional to 385,819.83, 532,615.97 and 256,972.73 is: 354,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,819.83 : 532,615.97 = 256,972.73 : x
  2. Step 2: Convert to fraction form
    385,819.83/532,615.97 = 256,972.73/x
  3. Step 3: Cross multiply
    385,819.83x = 532,615.97 × 256,972.73
  4. Step 4: Simplify right side
    385,819.83x = 136,867,777,831.85
  5. Step 5: Solve for x
    x = 136,867,777,831.85/385,819.83
  6. Step 6: Final answer
    x = 354,745.32

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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.