Home / 505,825.38-698,364.45-324,615.42

Finding the Fourth Proportional to 505,825.38, 698,364.45 and 324,615.42

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Solution

The fourth proportional to 505,825.38, 698,364.45 and 324,615.42 is: 448,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,825.38 : 698,364.45 = 324,615.42 : x
  2. Step 2: Convert to fraction form
    505,825.38/698,364.45 = 324,615.42/x
  3. Step 3: Cross multiply
    505,825.38x = 698,364.45 × 324,615.42
  4. Step 4: Simplify right side
    505,825.38x = 226,699,869,249.82
  5. Step 5: Solve for x
    x = 226,699,869,249.82/505,825.38
  6. Step 6: Final answer
    x = 448,178.12

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1.5x scale

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.