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Finding the Fourth Proportional to 352,439.98, 486,354.14 and 191,291.59

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Solution

The fourth proportional to 352,439.98, 486,354.14 and 191,291.59 is: 263,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,439.98 : 486,354.14 = 191,291.59 : x
  2. Step 2: Convert to fraction form
    352,439.98/486,354.14 = 191,291.59/x
  3. Step 3: Cross multiply
    352,439.98x = 486,354.14 × 191,291.59
  4. Step 4: Simplify right side
    352,439.98x = 93,035,456,743.68
  5. Step 5: Solve for x
    x = 93,035,456,743.68/352,439.98
  6. Step 6: Final answer
    x = 263,975.32

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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.