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Finding the Fourth Proportional to 353,505.42, 530,258.13 and 248,791.86

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Solution

The fourth proportional to 353,505.42, 530,258.13 and 248,791.86 is: 373,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,505.42 : 530,258.13 = 248,791.86 : x
  2. Step 2: Convert to fraction form
    353,505.42/530,258.13 = 248,791.86/x
  3. Step 3: Cross multiply
    353,505.42x = 530,258.13 × 248,791.86
  4. Step 4: Simplify right side
    353,505.42x = 131,923,906,442.82
  5. Step 5: Solve for x
    x = 131,923,906,442.82/353,505.42
  6. Step 6: Final answer
    x = 373,187.79

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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.