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Finding the Fourth Proportional to 379,512.81, 569,362.65 and 267,411.96

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Solution

The fourth proportional to 379,512.81, 569,362.65 and 267,411.96 is: 401,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,512.81 : 569,362.65 = 267,411.96 : x
  2. Step 2: Convert to fraction form
    379,512.81/569,362.65 = 267,411.96/x
  3. Step 3: Cross multiply
    379,512.81x = 569,362.65 × 267,411.96
  4. Step 4: Simplify right side
    379,512.81x = 152,254,382,187.29
  5. Step 5: Solve for x
    x = 152,254,382,187.29/379,512.81
  6. Step 6: Final answer
    x = 401,183.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.