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Finding the Fourth Proportional to 229,261.70, 343,892.55 and 220,076.30

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Solution

The fourth proportional to 229,261.70, 343,892.55 and 220,076.30 is: 330,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,261.70 : 343,892.55 = 220,076.30 : x
  2. Step 2: Convert to fraction form
    229,261.70/343,892.55 = 220,076.30/x
  3. Step 3: Cross multiply
    229,261.70x = 343,892.55 × 220,076.30
  4. Step 4: Simplify right side
    229,261.70x = 75,682,600,001.57
  5. Step 5: Solve for x
    x = 75,682,600,001.57/229,261.70
  6. Step 6: Final answer
    x = 330,114.45

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1.5x scale

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.