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Finding the Fourth Proportional to 352,434.87, 486,347.08 and 191,286.46

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Solution

The fourth proportional to 352,434.87, 486,347.08 and 191,286.46 is: 263,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,434.87 : 486,347.08 = 191,286.46 : x
  2. Step 2: Convert to fraction form
    352,434.87/486,347.08 = 191,286.46/x
  3. Step 3: Cross multiply
    352,434.87x = 486,347.08 × 191,286.46
  4. Step 4: Simplify right side
    352,434.87x = 93,031,610,786.32
  5. Step 5: Solve for x
    x = 93,031,610,786.32/352,434.87
  6. Step 6: Final answer
    x = 263,968.23

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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.