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Finding the Fourth Proportional to 352,422.85, 486,331.18 and 191,274.67

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Solution

The fourth proportional to 352,422.85, 486,331.18 and 191,274.67 is: 263,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,422.85 : 486,331.18 = 191,274.67 : x
  2. Step 2: Convert to fraction form
    352,422.85/486,331.18 = 191,274.67/x
  3. Step 3: Cross multiply
    352,422.85x = 486,331.18 × 191,274.67
  4. Step 4: Simplify right side
    352,422.85x = 93,022,835,965.21
  5. Step 5: Solve for x
    x = 93,022,835,965.21/352,422.85
  6. Step 6: Final answer
    x = 263,952.34

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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.