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Finding the Fourth Proportional to 223,840.20, 335,760.30 and 221,507.40

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Solution

The fourth proportional to 223,840.20, 335,760.30 and 221,507.40 is: 332,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,840.20 : 335,760.30 = 221,507.40 : x
  2. Step 2: Convert to fraction form
    223,840.20/335,760.30 = 221,507.40/x
  3. Step 3: Cross multiply
    223,840.20x = 335,760.30 × 221,507.40
  4. Step 4: Simplify right side
    223,840.20x = 74,373,391,076.22
  5. Step 5: Solve for x
    x = 74,373,391,076.22/223,840.20
  6. Step 6: Final answer
    x = 332,261.10

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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.