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Finding the Fourth Proportional to 362,092.20, 542,555.10 and 302,605.80

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Solution

The fourth proportional to 362,092.20, 542,555.10 and 302,605.80 is: 453,421.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,092.20 : 542,555.10 = 302,605.80 : x
  2. Step 2: Convert to fraction form
    362,092.20/542,555.10 = 302,605.80/x
  3. Step 3: Cross multiply
    362,092.20x = 542,555.10 × 302,605.80
  4. Step 4: Simplify right side
    362,092.20x = 164,180,320,079.58
  5. Step 5: Solve for x
    x = 164,180,320,079.58/362,092.20
  6. Step 6: Final answer
    x = 453,421.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.