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Finding the Fourth Proportional to 493,605.76, 681,176 and 267,251.20

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Solution

The fourth proportional to 493,605.76, 681,176 and 267,251.20 is: 368,806.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,605.76 : 681,176 = 267,251.20 : x
  2. Step 2: Convert to fraction form
    493,605.76/681,176 = 267,251.20/x
  3. Step 3: Cross multiply
    493,605.76x = 681,176 × 267,251.20
  4. Step 4: Simplify right side
    493,605.76x = 182,045,103,411.20
  5. Step 5: Solve for x
    x = 182,045,103,411.20/493,605.76
  6. Step 6: Final answer
    x = 368,806.68

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1.5x scale

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.