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Finding the Fourth Proportional to 692,198.23, 955,231.76 and 386,271.39

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Solution

The fourth proportional to 692,198.23, 955,231.76 and 386,271.39 is: 533,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,198.23 : 955,231.76 = 386,271.39 : x
  2. Step 2: Convert to fraction form
    692,198.23/955,231.76 = 386,271.39/x
  3. Step 3: Cross multiply
    692,198.23x = 955,231.76 × 386,271.39
  4. Step 4: Simplify right side
    692,198.23x = 368,978,699,707.35
  5. Step 5: Solve for x
    x = 368,978,699,707.35/692,198.23
  6. Step 6: Final answer
    x = 533,053.52

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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.