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Finding the Fourth Proportional to 541,390.20, 812,085.30 and 275,669.70

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Solution

The fourth proportional to 541,390.20, 812,085.30 and 275,669.70 is: 413,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,390.20 : 812,085.30 = 275,669.70 : x
  2. Step 2: Convert to fraction form
    541,390.20/812,085.30 = 275,669.70/x
  3. Step 3: Cross multiply
    541,390.20x = 812,085.30 × 275,669.70
  4. Step 4: Simplify right side
    541,390.20x = 223,867,311,025.41
  5. Step 5: Solve for x
    x = 223,867,311,025.41/541,390.20
  6. Step 6: Final answer
    x = 413,504.55

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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.