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Finding the Fourth Proportional to 222,507.40, 333,761.10 and 213,176.20

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Solution

The fourth proportional to 222,507.40, 333,761.10 and 213,176.20 is: 319,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,507.40 : 333,761.10 = 213,176.20 : x
  2. Step 2: Convert to fraction form
    222,507.40/333,761.10 = 213,176.20/x
  3. Step 3: Cross multiply
    222,507.40x = 333,761.10 × 213,176.20
  4. Step 4: Simplify right side
    222,507.40x = 71,149,923,005.82
  5. Step 5: Solve for x
    x = 71,149,923,005.82/222,507.40
  6. Step 6: Final answer
    x = 319,764.30

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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.