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Finding the Fourth Proportional to 325,533.79, 449,392.40 and 216,819.05

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Solution

The fourth proportional to 325,533.79, 449,392.40 and 216,819.05 is: 299,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,533.79 : 449,392.40 = 216,819.05 : x
  2. Step 2: Convert to fraction form
    325,533.79/449,392.40 = 216,819.05/x
  3. Step 3: Cross multiply
    325,533.79x = 449,392.40 × 216,819.05
  4. Step 4: Simplify right side
    325,533.79x = 97,436,833,909.18
  5. Step 5: Solve for x
    x = 97,436,833,909.18/325,533.79
  6. Step 6: Final answer
    x = 299,314.04

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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.