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Finding the Fourth Proportional to 379,510.80, 569,359.64 and 267,409.96

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Solution

The fourth proportional to 379,510.80, 569,359.64 and 267,409.96 is: 401,180.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,510.80 : 569,359.64 = 267,409.96 : x
  2. Step 2: Convert to fraction form
    379,510.80/569,359.64 = 267,409.96/x
  3. Step 3: Cross multiply
    379,510.80x = 569,359.64 × 267,409.96
  4. Step 4: Simplify right side
    379,510.80x = 152,252,438,558.01
  5. Step 5: Solve for x
    x = 152,252,438,558.01/379,510.80
  6. Step 6: Final answer
    x = 401,180.78

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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.