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Finding the Fourth Proportional to 692,186, 955,216.68 and 374,234

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Solution

The fourth proportional to 692,186, 955,216.68 and 374,234 is: 516,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,186 : 955,216.68 = 374,234 : x
  2. Step 2: Convert to fraction form
    692,186/955,216.68 = 374,234/x
  3. Step 3: Cross multiply
    692,186x = 955,216.68 × 374,234
  4. Step 4: Simplify right side
    692,186x = 357,474,559,023.12
  5. Step 5: Solve for x
    x = 357,474,559,023.12/692,186
  6. Step 6: Final answer
    x = 516,442.92

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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.