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Finding the Fourth Proportional to 355,235.20, 532,393.49 and 265,786.90

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Solution

The fourth proportional to 355,235.20, 532,393.49 and 265,786.90 is: 398,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,235.20 : 532,393.49 = 265,786.90 : x
  2. Step 2: Convert to fraction form
    355,235.20/532,393.49 = 265,786.90/x
  3. Step 3: Cross multiply
    355,235.20x = 532,393.49 × 265,786.90
  4. Step 4: Simplify right side
    355,235.20x = 141,503,215,287.28
  5. Step 5: Solve for x
    x = 141,503,215,287.28/355,235.20
  6. Step 6: Final answer
    x = 398,336.69

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1.5x scale

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.