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Finding the Fourth Proportional to 355,234.59, 490,218.01 and 194,086.18

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Solution

The fourth proportional to 355,234.59, 490,218.01 and 194,086.18 is: 267,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,234.59 : 490,218.01 = 194,086.18 : x
  2. Step 2: Convert to fraction form
    355,234.59/490,218.01 = 194,086.18/x
  3. Step 3: Cross multiply
    355,234.59x = 490,218.01 × 194,086.18
  4. Step 4: Simplify right side
    355,234.59x = 95,144,540,928.10
  5. Step 5: Solve for x
    x = 95,144,540,928.10/355,234.59
  6. Step 6: Final answer
    x = 267,835.80

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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.