Home / 353,520.28-487,868.24-192,385.72

Finding the Fourth Proportional to 353,520.28, 487,868.24 and 192,385.72

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Solution

The fourth proportional to 353,520.28, 487,868.24 and 192,385.72 is: 265,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,520.28 : 487,868.24 = 192,385.72 : x
  2. Step 2: Convert to fraction form
    353,520.28/487,868.24 = 192,385.72/x
  3. Step 3: Cross multiply
    353,520.28x = 487,868.24 × 192,385.72
  4. Step 4: Simplify right side
    353,520.28x = 93,858,879,216.26
  5. Step 5: Solve for x
    x = 93,858,879,216.26/353,520.28
  6. Step 6: Final answer
    x = 265,497.87

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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.