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Finding the Fourth Proportional to 228,668.43, 341,371.29 and 213,472.50

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Solution

The fourth proportional to 228,668.43, 341,371.29 and 213,472.50 is: 318,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,668.43 : 341,371.29 = 213,472.50 : x
  2. Step 2: Convert to fraction form
    228,668.43/341,371.29 = 213,472.50/x
  3. Step 3: Cross multiply
    228,668.43x = 341,371.29 × 213,472.50
  4. Step 4: Simplify right side
    228,668.43x = 72,873,382,624.01
  5. Step 5: Solve for x
    x = 72,873,382,624.01/228,668.43
  6. Step 6: Final answer
    x = 318,685.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.