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Finding the Fourth Proportional to 353,189.44, 487,400.31 and 192,044.90

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Solution

The fourth proportional to 353,189.44, 487,400.31 and 192,044.90 is: 265,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,189.44 : 487,400.31 = 192,044.90 : x
  2. Step 2: Convert to fraction form
    353,189.44/487,400.31 = 192,044.90/x
  3. Step 3: Cross multiply
    353,189.44x = 487,400.31 × 192,044.90
  4. Step 4: Simplify right side
    353,189.44x = 93,602,743,793.92
  5. Step 5: Solve for x
    x = 93,602,743,793.92/353,189.44
  6. Step 6: Final answer
    x = 265,021.35

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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.