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Finding the Fourth Proportional to 352,425.43, 486,347.33 and 191,280.48

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Solution

The fourth proportional to 352,425.43, 486,347.33 and 191,280.48 is: 263,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,425.43 : 486,347.33 = 191,280.48 : x
  2. Step 2: Convert to fraction form
    352,425.43/486,347.33 = 191,280.48/x
  3. Step 3: Cross multiply
    352,425.43x = 486,347.33 × 191,280.48
  4. Step 4: Simplify right side
    352,425.43x = 93,028,750,729.12
  5. Step 5: Solve for x
    x = 93,028,750,729.12/352,425.43
  6. Step 6: Final answer
    x = 263,967.19

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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.