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Finding the Fourth Proportional to 357,901.44, 493,905.60 and 196,770.72

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Solution

The fourth proportional to 357,901.44, 493,905.60 and 196,770.72 is: 271,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,901.44 : 493,905.60 = 196,770.72 : x
  2. Step 2: Convert to fraction form
    357,901.44/493,905.60 = 196,770.72/x
  3. Step 3: Cross multiply
    357,901.44x = 493,905.60 × 196,770.72
  4. Step 4: Simplify right side
    357,901.44x = 97,186,160,524.03
  5. Step 5: Solve for x
    x = 97,186,160,524.03/357,901.44
  6. Step 6: Final answer
    x = 271,544.48

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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.