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Finding the Fourth Proportional to 493,428.79, 680,933.78 and 267,074.29

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Solution

The fourth proportional to 493,428.79, 680,933.78 and 267,074.29 is: 368,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,428.79 : 680,933.78 = 267,074.29 : x
  2. Step 2: Convert to fraction form
    493,428.79/680,933.78 = 267,074.29/x
  3. Step 3: Cross multiply
    493,428.79x = 680,933.78 × 267,074.29
  4. Step 4: Simplify right side
    493,428.79x = 181,859,905,830.52
  5. Step 5: Solve for x
    x = 181,859,905,830.52/493,428.79
  6. Step 6: Final answer
    x = 368,563.63

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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.