Home / 521,783.37-782,824.50-255,621.83

Finding the Fourth Proportional to 521,783.37, 782,824.50 and 255,621.83

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Solution

The fourth proportional to 521,783.37, 782,824.50 and 255,621.83 is: 383,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,783.37 : 782,824.50 = 255,621.83 : x
  2. Step 2: Convert to fraction form
    521,783.37/782,824.50 = 255,621.83/x
  3. Step 3: Cross multiply
    521,783.37x = 782,824.50 × 255,621.83
  4. Step 4: Simplify right side
    521,783.37x = 200,107,027,344.71
  5. Step 5: Solve for x
    x = 200,107,027,344.71/521,783.37
  6. Step 6: Final answer
    x = 383,505.95

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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.