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Finding the Fourth Proportional to 383,205.94, 528,824.34 and 222,154.35

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Solution

The fourth proportional to 383,205.94, 528,824.34 and 222,154.35 is: 306,573.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,205.94 : 528,824.34 = 222,154.35 : x
  2. Step 2: Convert to fraction form
    383,205.94/528,824.34 = 222,154.35/x
  3. Step 3: Cross multiply
    383,205.94x = 528,824.34 × 222,154.35
  4. Step 4: Simplify right side
    383,205.94x = 117,480,623,761.99
  5. Step 5: Solve for x
    x = 117,480,623,761.99/383,205.94
  6. Step 6: Final answer
    x = 306,573.08

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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.