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Finding the Fourth Proportional to 482,838.50, 666,308.79 and 267,987.62

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Solution

The fourth proportional to 482,838.50, 666,308.79 and 267,987.62 is: 369,818.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,838.50 : 666,308.79 = 267,987.62 : x
  2. Step 2: Convert to fraction form
    482,838.50/666,308.79 = 267,987.62/x
  3. Step 3: Cross multiply
    482,838.50x = 666,308.79 × 267,987.62
  4. Step 4: Simplify right side
    482,838.50x = 178,562,503,485.64
  5. Step 5: Solve for x
    x = 178,562,503,485.64/482,838.50
  6. Step 6: Final answer
    x = 369,818.28

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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.