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Finding the Fourth Proportional to 352,434.62, 486,346.73 and 191,286.21

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Solution

The fourth proportional to 352,434.62, 486,346.73 and 191,286.21 is: 263,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,434.62 : 486,346.73 = 191,286.21 : x
  2. Step 2: Convert to fraction form
    352,434.62/486,346.73 = 191,286.21/x
  3. Step 3: Cross multiply
    352,434.62x = 486,346.73 × 191,286.21
  4. Step 4: Simplify right side
    352,434.62x = 93,031,423,205.81
  5. Step 5: Solve for x
    x = 93,031,423,205.81/352,434.62
  6. Step 6: Final answer
    x = 263,967.89

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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.