Home / 768,708.58-1,152,944.60-256,382.78

Finding the Fourth Proportional to 768,708.58, 1,152,944.60 and 256,382.78

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Solution

The fourth proportional to 768,708.58, 1,152,944.60 and 256,382.78 is: 384,534.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,708.58 : 1,152,944.60 = 256,382.78 : x
  2. Step 2: Convert to fraction form
    768,708.58/1,152,944.60 = 256,382.78/x
  3. Step 3: Cross multiply
    768,708.58x = 1,152,944.60 × 256,382.78
  4. Step 4: Simplify right side
    768,708.58x = 295,595,141,733.99
  5. Step 5: Solve for x
    x = 295,595,141,733.99/768,708.58
  6. Step 6: Final answer
    x = 384,534.72

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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.