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Finding the Fourth Proportional to 443,934.37, 612,689.40 and 250,381.80

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Solution

The fourth proportional to 443,934.37, 612,689.40 and 250,381.80 is: 345,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,934.37 : 612,689.40 = 250,381.80 : x
  2. Step 2: Convert to fraction form
    443,934.37/612,689.40 = 250,381.80/x
  3. Step 3: Cross multiply
    443,934.37x = 612,689.40 × 250,381.80
  4. Step 4: Simplify right side
    443,934.37x = 153,406,274,812.92
  5. Step 5: Solve for x
    x = 153,406,274,812.92/443,934.37
  6. Step 6: Final answer
    x = 345,560.71

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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.