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Finding the Fourth Proportional to 417,611.55, 576,304.31 and 226,624.94

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Solution

The fourth proportional to 417,611.55, 576,304.31 and 226,624.94 is: 312,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,611.55 : 576,304.31 = 226,624.94 : x
  2. Step 2: Convert to fraction form
    417,611.55/576,304.31 = 226,624.94/x
  3. Step 3: Cross multiply
    417,611.55x = 576,304.31 × 226,624.94
  4. Step 4: Simplify right side
    417,611.55x = 130,604,928,246.91
  5. Step 5: Solve for x
    x = 130,604,928,246.91/417,611.55
  6. Step 6: Final answer
    x = 312,742.62

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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.