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Finding the Fourth Proportional to 281,732.28, 422,598.42 and 170,691

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Solution

The fourth proportional to 281,732.28, 422,598.42 and 170,691 is: 256,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,732.28 : 422,598.42 = 170,691 : x
  2. Step 2: Convert to fraction form
    281,732.28/422,598.42 = 170,691/x
  3. Step 3: Cross multiply
    281,732.28x = 422,598.42 × 170,691
  4. Step 4: Simplify right side
    281,732.28x = 72,133,746,908.22
  5. Step 5: Solve for x
    x = 72,133,746,908.22/281,732.28
  6. Step 6: Final answer
    x = 256,036.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.