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Finding the Fourth Proportional to 484,992.20, 727,488.30 and 275,040.20

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Solution

The fourth proportional to 484,992.20, 727,488.30 and 275,040.20 is: 412,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,992.20 : 727,488.30 = 275,040.20 : x
  2. Step 2: Convert to fraction form
    484,992.20/727,488.30 = 275,040.20/x
  3. Step 3: Cross multiply
    484,992.20x = 727,488.30 × 275,040.20
  4. Step 4: Simplify right side
    484,992.20x = 200,088,527,529.66
  5. Step 5: Solve for x
    x = 200,088,527,529.66/484,992.20
  6. Step 6: Final answer
    x = 412,560.30

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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.