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Finding the Fourth Proportional to 344,425.72, 475,313.16 and 189,383.52

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Solution

The fourth proportional to 344,425.72, 475,313.16 and 189,383.52 is: 261,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,425.72 : 475,313.16 = 189,383.52 : x
  2. Step 2: Convert to fraction form
    344,425.72/475,313.16 = 189,383.52/x
  3. Step 3: Cross multiply
    344,425.72x = 475,313.16 × 189,383.52
  4. Step 4: Simplify right side
    344,425.72x = 90,016,479,343.12
  5. Step 5: Solve for x
    x = 90,016,479,343.12/344,425.72
  6. Step 6: Final answer
    x = 261,352.37

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1.5x scale

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.