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Finding the Fourth Proportional to 329,113.20, 493,669.80 and 293,170.80

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Solution

The fourth proportional to 329,113.20, 493,669.80 and 293,170.80 is: 439,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,113.20 : 493,669.80 = 293,170.80 : x
  2. Step 2: Convert to fraction form
    329,113.20/493,669.80 = 293,170.80/x
  3. Step 3: Cross multiply
    329,113.20x = 493,669.80 × 293,170.80
  4. Step 4: Simplify right side
    329,113.20x = 144,729,570,201.84
  5. Step 5: Solve for x
    x = 144,729,570,201.84/329,113.20
  6. Step 6: Final answer
    x = 439,756.20

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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.