Home / 839,612.21-1,259,543.46-270,806.31

Finding the Fourth Proportional to 839,612.21, 1,259,543.46 and 270,806.31

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Solution

The fourth proportional to 839,612.21, 1,259,543.46 and 270,806.31 is: 406,249.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,612.21 : 1,259,543.46 = 270,806.31 : x
  2. Step 2: Convert to fraction form
    839,612.21/1,259,543.46 = 270,806.31/x
  3. Step 3: Cross multiply
    839,612.21x = 1,259,543.46 × 270,806.31
  4. Step 4: Simplify right side
    839,612.21x = 341,092,316,687.23
  5. Step 5: Solve for x
    x = 341,092,316,687.23/839,612.21
  6. Step 6: Final answer
    x = 406,249.83

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Half scale
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Double scale
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Similar ratio
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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.