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Finding the Fourth Proportional to 386,709.01, 533,650.39 and 214,616.97

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Solution

The fourth proportional to 386,709.01, 533,650.39 and 214,616.97 is: 296,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,709.01 : 533,650.39 = 214,616.97 : x
  2. Step 2: Convert to fraction form
    386,709.01/533,650.39 = 214,616.97/x
  3. Step 3: Cross multiply
    386,709.01x = 533,650.39 × 214,616.97
  4. Step 4: Simplify right side
    386,709.01x = 114,530,429,204.58
  5. Step 5: Solve for x
    x = 114,530,429,204.58/386,709.01
  6. Step 6: Final answer
    x = 296,166.95

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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.