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Finding the Fourth Proportional to 433,243.83, 649,660.65 and 253,381.31

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Solution

The fourth proportional to 433,243.83, 649,660.65 and 253,381.31 is: 379,952.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,243.83 : 649,660.65 = 253,381.31 : x
  2. Step 2: Convert to fraction form
    433,243.83/649,660.65 = 253,381.31/x
  3. Step 3: Cross multiply
    433,243.83x = 649,660.65 × 253,381.31
  4. Step 4: Simplify right side
    433,243.83x = 164,611,863,304.15
  5. Step 5: Solve for x
    x = 164,611,863,304.15/433,243.83
  6. Step 6: Final answer
    x = 379,952.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.