Home / 825,481.36-1,138,681.64-519,072.80

Finding the Fourth Proportional to 825,481.36, 1,138,681.64 and 519,072.80

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Solution

The fourth proportional to 825,481.36, 1,138,681.64 and 519,072.80 is: 716,016.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,481.36 : 1,138,681.64 = 519,072.80 : x
  2. Step 2: Convert to fraction form
    825,481.36/1,138,681.64 = 519,072.80/x
  3. Step 3: Cross multiply
    825,481.36x = 1,138,681.64 × 519,072.80
  4. Step 4: Simplify right side
    825,481.36x = 591,058,667,183.39
  5. Step 5: Solve for x
    x = 591,058,667,183.39/825,481.36
  6. Step 6: Final answer
    x = 716,016.98

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.