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Finding the Fourth Proportional to 461,338.28, 636,662.55 and 267,731.09

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Solution

The fourth proportional to 461,338.28, 636,662.55 and 267,731.09 is: 369,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,338.28 : 636,662.55 = 267,731.09 : x
  2. Step 2: Convert to fraction form
    461,338.28/636,662.55 = 267,731.09/x
  3. Step 3: Cross multiply
    461,338.28x = 636,662.55 × 267,731.09
  4. Step 4: Simplify right side
    461,338.28x = 170,454,358,473.68
  5. Step 5: Solve for x
    x = 170,454,358,473.68/461,338.28
  6. Step 6: Final answer
    x = 369,478.03

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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.