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Finding the Fourth Proportional to 267,257.55, 400,886.33 and 127,289.55

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Solution

The fourth proportional to 267,257.55, 400,886.33 and 127,289.55 is: 190,934.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,257.55 : 400,886.33 = 127,289.55 : x
  2. Step 2: Convert to fraction form
    267,257.55/400,886.33 = 127,289.55/x
  3. Step 3: Cross multiply
    267,257.55x = 400,886.33 × 127,289.55
  4. Step 4: Simplify right side
    267,257.55x = 51,028,639,910.40
  5. Step 5: Solve for x
    x = 51,028,639,910.40/267,257.55
  6. Step 6: Final answer
    x = 190,934.33

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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.