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Finding the Fourth Proportional to 352,435.01, 486,359.10 and 191,290.05

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Solution

The fourth proportional to 352,435.01, 486,359.10 and 191,290.05 is: 263,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,435.01 : 486,359.10 = 191,290.05 : x
  2. Step 2: Convert to fraction form
    352,435.01/486,359.10 = 191,290.05/x
  3. Step 3: Cross multiply
    352,435.01x = 486,359.10 × 191,290.05
  4. Step 4: Simplify right side
    352,435.01x = 93,035,656,556.96
  5. Step 5: Solve for x
    x = 93,035,656,556.96/352,435.01
  6. Step 6: Final answer
    x = 263,979.61

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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.