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Finding the Fourth Proportional to 540,651.92, 810,977.87 and 203,768.18

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Solution

The fourth proportional to 540,651.92, 810,977.87 and 203,768.18 is: 305,652.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,651.92 : 810,977.87 = 203,768.18 : x
  2. Step 2: Convert to fraction form
    540,651.92/810,977.87 = 203,768.18/x
  3. Step 3: Cross multiply
    540,651.92x = 810,977.87 × 203,768.18
  4. Step 4: Simplify right side
    540,651.92x = 165,251,486,366.75
  5. Step 5: Solve for x
    x = 165,251,486,366.75/540,651.92
  6. Step 6: Final answer
    x = 305,652.27

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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.