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Finding the Fourth Proportional to 482,761.72, 723,529.74 and 216,511.48

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Solution

The fourth proportional to 482,761.72, 723,529.74 and 216,511.48 is: 324,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,761.72 : 723,529.74 = 216,511.48 : x
  2. Step 2: Convert to fraction form
    482,761.72/723,529.74 = 216,511.48/x
  3. Step 3: Cross multiply
    482,761.72x = 723,529.74 × 216,511.48
  4. Step 4: Simplify right side
    482,761.72x = 156,652,494,831.42
  5. Step 5: Solve for x
    x = 156,652,494,831.42/482,761.72
  6. Step 6: Final answer
    x = 324,492.37

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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.