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Finding the Fourth Proportional to 352,456.30, 486,387.95 and 191,310.04

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Solution

The fourth proportional to 352,456.30, 486,387.95 and 191,310.04 is: 264,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,456.30 : 486,387.95 = 191,310.04 : x
  2. Step 2: Convert to fraction form
    352,456.30/486,387.95 = 191,310.04/x
  3. Step 3: Cross multiply
    352,456.30x = 486,387.95 × 191,310.04
  4. Step 4: Simplify right side
    352,456.30x = 93,050,898,170.02
  5. Step 5: Solve for x
    x = 93,050,898,170.02/352,456.30
  6. Step 6: Final answer
    x = 264,006.91

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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.