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Finding the Fourth Proportional to 440,072.69, 606,703.97 and 376,227.73

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Solution

The fourth proportional to 440,072.69, 606,703.97 and 376,227.73 is: 518,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,072.69 : 606,703.97 = 376,227.73 : x
  2. Step 2: Convert to fraction form
    440,072.69/606,703.97 = 376,227.73/x
  3. Step 3: Cross multiply
    440,072.69x = 606,703.97 × 376,227.73
  4. Step 4: Simplify right side
    440,072.69x = 228,258,856,838.90
  5. Step 5: Solve for x
    x = 228,258,856,838.90/440,072.69
  6. Step 6: Final answer
    x = 518,684.44

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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.