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Finding the Fourth Proportional to 493,711.61, 681,318.07 and 267,357.11

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Solution

The fourth proportional to 493,711.61, 681,318.07 and 267,357.11 is: 368,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,711.61 : 681,318.07 = 267,357.11 : x
  2. Step 2: Convert to fraction form
    493,711.61/681,318.07 = 267,357.11/x
  3. Step 3: Cross multiply
    493,711.61x = 681,318.07 × 267,357.11
  4. Step 4: Simplify right side
    493,711.61x = 182,155,230,185.98
  5. Step 5: Solve for x
    x = 182,155,230,185.98/493,711.61
  6. Step 6: Final answer
    x = 368,950.67

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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.