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Finding the Fourth Proportional to 615,472.11, 923,611.83 and 216,102.60

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Solution

The fourth proportional to 615,472.11, 923,611.83 and 216,102.60 is: 324,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,472.11 : 923,611.83 = 216,102.60 : x
  2. Step 2: Convert to fraction form
    615,472.11/923,611.83 = 216,102.60/x
  3. Step 3: Cross multiply
    615,472.11x = 923,611.83 × 216,102.60
  4. Step 4: Simplify right side
    615,472.11x = 199,594,917,853.76
  5. Step 5: Solve for x
    x = 199,594,917,853.76/615,472.11
  6. Step 6: Final answer
    x = 324,295.63

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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.