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Finding the Fourth Proportional to 379,506.62, 569,353.35 and 267,405.76

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Solution

The fourth proportional to 379,506.62, 569,353.35 and 267,405.76 is: 401,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,506.62 : 569,353.35 = 267,405.76 : x
  2. Step 2: Convert to fraction form
    379,506.62/569,353.35 = 267,405.76/x
  3. Step 3: Cross multiply
    379,506.62x = 569,353.35 × 267,405.76
  4. Step 4: Simplify right side
    379,506.62x = 152,248,363,777.15
  5. Step 5: Solve for x
    x = 152,248,363,777.15/379,506.62
  6. Step 6: Final answer
    x = 401,174.46

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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.