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Finding the Fourth Proportional to 353,520.53, 487,868.58 and 192,385.97

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Solution

The fourth proportional to 353,520.53, 487,868.58 and 192,385.97 is: 265,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,520.53 : 487,868.58 = 192,385.97 : x
  2. Step 2: Convert to fraction form
    353,520.53/487,868.58 = 192,385.97/x
  3. Step 3: Cross multiply
    353,520.53x = 487,868.58 × 192,385.97
  4. Step 4: Simplify right side
    353,520.53x = 93,859,067,556.48
  5. Step 5: Solve for x
    x = 93,859,067,556.48/353,520.53
  6. Step 6: Final answer
    x = 265,498.21

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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.