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Finding the Fourth Proportional to 574,184.40, 859,721.40 and 449,768.40

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Solution

The fourth proportional to 574,184.40, 859,721.40 and 449,768.40 is: 673,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,184.40 : 859,721.40 = 449,768.40 : x
  2. Step 2: Convert to fraction form
    574,184.40/859,721.40 = 449,768.40/x
  3. Step 3: Cross multiply
    574,184.40x = 859,721.40 × 449,768.40
  4. Step 4: Simplify right side
    574,184.40x = 386,675,518,523.76
  5. Step 5: Solve for x
    x = 386,675,518,523.76/574,184.40
  6. Step 6: Final answer
    x = 673,434.39

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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.