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Finding the Fourth Proportional to 540,236.68, 810,863.49 and 274,188.13

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Solution

The fourth proportional to 540,236.68, 810,863.49 and 274,188.13 is: 411,540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,236.68 : 810,863.49 = 274,188.13 : x
  2. Step 2: Convert to fraction form
    540,236.68/810,863.49 = 274,188.13/x
  3. Step 3: Cross multiply
    540,236.68x = 810,863.49 × 274,188.13
  4. Step 4: Simplify right side
    540,236.68x = 222,329,144,008.37
  5. Step 5: Solve for x
    x = 222,329,144,008.37/540,236.68
  6. Step 6: Final answer
    x = 411,540.26

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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.