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Finding the Fourth Proportional to 674,113.54, 928,997.76 and 482,794.78

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Solution

The fourth proportional to 674,113.54, 928,997.76 and 482,794.78 is: 665,340.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,113.54 : 928,997.76 = 482,794.78 : x
  2. Step 2: Convert to fraction form
    674,113.54/928,997.76 = 482,794.78/x
  3. Step 3: Cross multiply
    674,113.54x = 928,997.76 × 482,794.78
  4. Step 4: Simplify right side
    674,113.54x = 448,515,269,159.69
  5. Step 5: Solve for x
    x = 448,515,269,159.69/674,113.54
  6. Step 6: Final answer
    x = 665,340.84

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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.