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Finding the Fourth Proportional to 431,958.42, 596,221.19 and 250,728.74

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Solution

The fourth proportional to 431,958.42, 596,221.19 and 250,728.74 is: 346,074.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,958.42 : 596,221.19 = 250,728.74 : x
  2. Step 2: Convert to fraction form
    431,958.42/596,221.19 = 250,728.74/x
  3. Step 3: Cross multiply
    431,958.42x = 596,221.19 × 250,728.74
  4. Step 4: Simplify right side
    431,958.42x = 149,489,783,495.25
  5. Step 5: Solve for x
    x = 149,489,783,495.25/431,958.42
  6. Step 6: Final answer
    x = 346,074.48

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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.