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Finding the Fourth Proportional to 302,628.60, 453,894.30 and 92,217.60

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Solution

The fourth proportional to 302,628.60, 453,894.30 and 92,217.60 is: 138,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,628.60 : 453,894.30 = 92,217.60 : x
  2. Step 2: Convert to fraction form
    302,628.60/453,894.30 = 92,217.60/x
  3. Step 3: Cross multiply
    302,628.60x = 453,894.30 × 92,217.60
  4. Step 4: Simplify right side
    302,628.60x = 41,857,042,999.68
  5. Step 5: Solve for x
    x = 41,857,042,999.68/302,628.60
  6. Step 6: Final answer
    x = 138,311.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.