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Finding the Fourth Proportional to 379,803.96, 524,115.72 and 207,716.04

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Solution

The fourth proportional to 379,803.96, 524,115.72 and 207,716.04 is: 286,640.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,803.96 : 524,115.72 = 207,716.04 : x
  2. Step 2: Convert to fraction form
    379,803.96/524,115.72 = 207,716.04/x
  3. Step 3: Cross multiply
    379,803.96x = 524,115.72 × 207,716.04
  4. Step 4: Simplify right side
    379,803.96x = 108,867,241,860.15
  5. Step 5: Solve for x
    x = 108,867,241,860.15/379,803.96
  6. Step 6: Final answer
    x = 286,640.62

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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.