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Finding the Fourth Proportional to 355,833.50, 491,045.85 and 194,686.22

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Solution

The fourth proportional to 355,833.50, 491,045.85 and 194,686.22 is: 268,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,833.50 : 491,045.85 = 194,686.22 : x
  2. Step 2: Convert to fraction form
    355,833.50/491,045.85 = 194,686.22/x
  3. Step 3: Cross multiply
    355,833.50x = 491,045.85 × 194,686.22
  4. Step 4: Simplify right side
    355,833.50x = 95,599,861,610.80
  5. Step 5: Solve for x
    x = 95,599,861,610.80/355,833.50
  6. Step 6: Final answer
    x = 268,664.59

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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.