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Finding the Fourth Proportional to 574,133.40, 859,644.90 and 449,717.40

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Solution

The fourth proportional to 574,133.40, 859,644.90 and 449,717.40 is: 673,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,133.40 : 859,644.90 = 449,717.40 : x
  2. Step 2: Convert to fraction form
    574,133.40/859,644.90 = 449,717.40/x
  3. Step 3: Cross multiply
    574,133.40x = 859,644.90 × 449,717.40
  4. Step 4: Simplify right side
    574,133.40x = 386,597,269,351.26
  5. Step 5: Solve for x
    x = 386,597,269,351.26/574,133.40
  6. Step 6: Final answer
    x = 673,357.92

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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.