Home / 554,513.54-827,759.19-487,253.30

Finding the Fourth Proportional to 554,513.54, 827,759.19 and 487,253.30

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Solution

The fourth proportional to 554,513.54, 827,759.19 and 487,253.30 is: 727,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,513.54 : 827,759.19 = 487,253.30 : x
  2. Step 2: Convert to fraction form
    554,513.54/827,759.19 = 487,253.30/x
  3. Step 3: Cross multiply
    554,513.54x = 827,759.19 × 487,253.30
  4. Step 4: Simplify right side
    554,513.54x = 403,328,394,496.56
  5. Step 5: Solve for x
    x = 403,328,394,496.56/554,513.54
  6. Step 6: Final answer
    x = 727,355.36

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.