Home / 768,705.08-1,152,939.36-256,379.27

Finding the Fourth Proportional to 768,705.08, 1,152,939.36 and 256,379.27

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Solution

The fourth proportional to 768,705.08, 1,152,939.36 and 256,379.27 is: 384,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,705.08 : 1,152,939.36 = 256,379.27 : x
  2. Step 2: Convert to fraction form
    768,705.08/1,152,939.36 = 256,379.27/x
  3. Step 3: Cross multiply
    768,705.08x = 1,152,939.36 × 256,379.27
  4. Step 4: Simplify right side
    768,705.08x = 295,589,751,471.07
  5. Step 5: Solve for x
    x = 295,589,751,471.07/768,705.08
  6. Step 6: Final answer
    x = 384,529.46

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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.