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Finding the Fourth Proportional to 674,109.54, 928,992.24 and 482,790.78

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Solution

The fourth proportional to 674,109.54, 928,992.24 and 482,790.78 is: 665,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,109.54 : 928,992.24 = 482,790.78 : x
  2. Step 2: Convert to fraction form
    674,109.54/928,992.24 = 482,790.78/x
  3. Step 3: Cross multiply
    674,109.54x = 928,992.24 × 482,790.78
  4. Step 4: Simplify right side
    674,109.54x = 448,508,888,163.55
  5. Step 5: Solve for x
    x = 448,508,888,163.55/674,109.54
  6. Step 6: Final answer
    x = 665,335.32

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Double scale
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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.