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Finding the Fourth Proportional to 401,257.01, 553,732.63 and 217,494.84

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Solution

The fourth proportional to 401,257.01, 553,732.63 and 217,494.84 is: 300,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,257.01 : 553,732.63 = 217,494.84 : x
  2. Step 2: Convert to fraction form
    401,257.01/553,732.63 = 217,494.84/x
  3. Step 3: Cross multiply
    401,257.01x = 553,732.63 × 217,494.84
  4. Step 4: Simplify right side
    401,257.01x = 120,433,986,995.97
  5. Step 5: Solve for x
    x = 120,433,986,995.97/401,257.01
  6. Step 6: Final answer
    x = 300,141.76

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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.