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Finding the Fourth Proportional to 692,195.50, 955,229.80 and 374,243.50

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Solution

The fourth proportional to 692,195.50, 955,229.80 and 374,243.50 is: 516,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,195.50 : 955,229.80 = 374,243.50 : x
  2. Step 2: Convert to fraction form
    692,195.50/955,229.80 = 374,243.50/x
  3. Step 3: Cross multiply
    692,195.50x = 955,229.80 × 374,243.50
  4. Step 4: Simplify right side
    692,195.50x = 357,488,543,656.30
  5. Step 5: Solve for x
    x = 357,488,543,656.30/692,195.50
  6. Step 6: Final answer
    x = 516,456.04

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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.