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Finding the Fourth Proportional to 615,672.55, 923,601.17 and 216,242.92

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Solution

The fourth proportional to 615,672.55, 923,601.17 and 216,242.92 is: 324,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,672.55 : 923,601.17 = 216,242.92 : x
  2. Step 2: Convert to fraction form
    615,672.55/923,601.17 = 216,242.92/x
  3. Step 3: Cross multiply
    615,672.55x = 923,601.17 × 216,242.92
  4. Step 4: Simplify right side
    615,672.55x = 199,722,212,835.00
  5. Step 5: Solve for x
    x = 199,722,212,835.00/615,672.55
  6. Step 6: Final answer
    x = 324,396.81

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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.