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Finding the Fourth Proportional to 541,427.20, 812,140.80 and 275,706.70

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Solution

The fourth proportional to 541,427.20, 812,140.80 and 275,706.70 is: 413,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,427.20 : 812,140.80 = 275,706.70 : x
  2. Step 2: Convert to fraction form
    541,427.20/812,140.80 = 275,706.70/x
  3. Step 3: Cross multiply
    541,427.20x = 812,140.80 × 275,706.70
  4. Step 4: Simplify right side
    541,427.20x = 223,912,659,903.36
  5. Step 5: Solve for x
    x = 223,912,659,903.36/541,427.20
  6. Step 6: Final answer
    x = 413,560.05

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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.