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Finding the Fourth Proportional to 275,286.01, 379,928.01 and 154,404.45

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Solution

The fourth proportional to 275,286.01, 379,928.01 and 154,404.45 is: 213,096.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,286.01 : 379,928.01 = 154,404.45 : x
  2. Step 2: Convert to fraction form
    275,286.01/379,928.01 = 154,404.45/x
  3. Step 3: Cross multiply
    275,286.01x = 379,928.01 × 154,404.45
  4. Step 4: Simplify right side
    275,286.01x = 58,662,575,423.64
  5. Step 5: Solve for x
    x = 58,662,575,423.64/275,286.01
  6. Step 6: Final answer
    x = 213,096.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.