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Finding the Fourth Proportional to 674,112.54, 928,996.38 and 482,793.78

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Solution

The fourth proportional to 674,112.54, 928,996.38 and 482,793.78 is: 665,339.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,112.54 : 928,996.38 = 482,793.78 : x
  2. Step 2: Convert to fraction form
    674,112.54/928,996.38 = 482,793.78/x
  3. Step 3: Cross multiply
    674,112.54x = 928,996.38 × 482,793.78
  4. Step 4: Simplify right side
    674,112.54x = 448,513,673,906.52
  5. Step 5: Solve for x
    x = 448,513,673,906.52/674,112.54
  6. Step 6: Final answer
    x = 665,339.46

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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.