Home / 699,991.51-1,049,987.27-400,261.84

Finding the Fourth Proportional to 699,991.51, 1,049,987.27 and 400,261.84

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Solution

The fourth proportional to 699,991.51, 1,049,987.27 and 400,261.84 is: 600,392.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,991.51 : 1,049,987.27 = 400,261.84 : x
  2. Step 2: Convert to fraction form
    699,991.51/1,049,987.27 = 400,261.84/x
  3. Step 3: Cross multiply
    699,991.51x = 1,049,987.27 × 400,261.84
  4. Step 4: Simplify right side
    699,991.51x = 420,269,836,666.78
  5. Step 5: Solve for x
    x = 420,269,836,666.78/699,991.51
  6. Step 6: Final answer
    x = 600,392.76

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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.