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Finding the Fourth Proportional to 356,004.34, 491,290.60 and 194,855.92

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Solution

The fourth proportional to 356,004.34, 491,290.60 and 194,855.92 is: 268,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,004.34 : 491,290.60 = 194,855.92 : x
  2. Step 2: Convert to fraction form
    356,004.34/491,290.60 = 194,855.92/x
  3. Step 3: Cross multiply
    356,004.34x = 491,290.60 × 194,855.92
  4. Step 4: Simplify right side
    356,004.34x = 95,730,882,104.30
  5. Step 5: Solve for x
    x = 95,730,882,104.30/356,004.34
  6. Step 6: Final answer
    x = 268,903.70

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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.