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Finding the Fourth Proportional to 379,506.06, 569,352.49 and 267,405.21

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Solution

The fourth proportional to 379,506.06, 569,352.49 and 267,405.21 is: 401,173.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,506.06 : 569,352.49 = 267,405.21 : x
  2. Step 2: Convert to fraction form
    379,506.06/569,352.49 = 267,405.21/x
  3. Step 3: Cross multiply
    379,506.06x = 569,352.49 × 267,405.21
  4. Step 4: Simplify right side
    379,506.06x = 152,247,821,483.96
  5. Step 5: Solve for x
    x = 152,247,821,483.96/379,506.06
  6. Step 6: Final answer
    x = 401,173.62

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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.