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Finding the Fourth Proportional to 482,446.70, 665,856.14 and 267,655.96

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Solution

The fourth proportional to 482,446.70, 665,856.14 and 267,655.96 is: 369,409.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,446.70 : 665,856.14 = 267,655.96 : x
  2. Step 2: Convert to fraction form
    482,446.70/665,856.14 = 267,655.96/x
  3. Step 3: Cross multiply
    482,446.70x = 665,856.14 × 267,655.96
  4. Step 4: Simplify right side
    482,446.70x = 178,220,364,373.59
  5. Step 5: Solve for x
    x = 178,220,364,373.59/482,446.70
  6. Step 6: Final answer
    x = 369,409.44

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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.