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Finding the Fourth Proportional to 528,471.45, 792,733.86 and 149,419.41

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Solution

The fourth proportional to 528,471.45, 792,733.86 and 149,419.41 is: 224,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,471.45 : 792,733.86 = 149,419.41 : x
  2. Step 2: Convert to fraction form
    528,471.45/792,733.86 = 149,419.41/x
  3. Step 3: Cross multiply
    528,471.45x = 792,733.86 × 149,419.41
  4. Step 4: Simplify right side
    528,471.45x = 118,449,825,648.22
  5. Step 5: Solve for x
    x = 118,449,825,648.22/528,471.45
  6. Step 6: Final answer
    x = 224,136.66

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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.