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Finding the Fourth Proportional to 482,626.85, 666,105 and 267,835.91

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Solution

The fourth proportional to 482,626.85, 666,105 and 267,835.91 is: 369,657.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,626.85 : 666,105 = 267,835.91 : x
  2. Step 2: Convert to fraction form
    482,626.85/666,105 = 267,835.91/x
  3. Step 3: Cross multiply
    482,626.85x = 666,105 × 267,835.91
  4. Step 4: Simplify right side
    482,626.85x = 178,406,838,830.55
  5. Step 5: Solve for x
    x = 178,406,838,830.55/482,626.85
  6. Step 6: Final answer
    x = 369,657.92

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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.