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Finding the Fourth Proportional to 493,974.76, 681,686.30 and 267,620.24

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Solution

The fourth proportional to 493,974.76, 681,686.30 and 267,620.24 is: 369,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,974.76 : 681,686.30 = 267,620.24 : x
  2. Step 2: Convert to fraction form
    493,974.76/681,686.30 = 267,620.24/x
  3. Step 3: Cross multiply
    493,974.76x = 681,686.30 × 267,620.24
  4. Step 4: Simplify right side
    493,974.76x = 182,433,051,210.71
  5. Step 5: Solve for x
    x = 182,433,051,210.71/493,974.76
  6. Step 6: Final answer
    x = 369,316.54

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Double scale
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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.