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Finding the Fourth Proportional to 493,898.90, 681,583.75 and 267,544.40

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Solution

The fourth proportional to 493,898.90, 681,583.75 and 267,544.40 is: 369,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,898.90 : 681,583.75 = 267,544.40 : x
  2. Step 2: Convert to fraction form
    493,898.90/681,583.75 = 267,544.40/x
  3. Step 3: Cross multiply
    493,898.90x = 681,583.75 × 267,544.40
  4. Step 4: Simplify right side
    493,898.90x = 182,353,911,366.72
  5. Step 5: Solve for x
    x = 182,353,911,366.72/493,898.90
  6. Step 6: Final answer
    x = 369,213.04

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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.