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Finding the Fourth Proportional to 407,671.43, 562,545.51 and 238,003.97

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Solution

The fourth proportional to 407,671.43, 562,545.51 and 238,003.97 is: 328,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,671.43 : 562,545.51 = 238,003.97 : x
  2. Step 2: Convert to fraction form
    407,671.43/562,545.51 = 238,003.97/x
  3. Step 3: Cross multiply
    407,671.43x = 562,545.51 × 238,003.97
  4. Step 4: Simplify right side
    407,671.43x = 133,888,064,685.68
  5. Step 5: Solve for x
    x = 133,888,064,685.68/407,671.43
  6. Step 6: Final answer
    x = 328,421.51

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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.