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Finding the Fourth Proportional to 551,878.40, 825,849.30 and 382,604.60

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Solution

The fourth proportional to 551,878.40, 825,849.30 and 382,604.60 is: 572,542.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,878.40 : 825,849.30 = 382,604.60 : x
  2. Step 2: Convert to fraction form
    551,878.40/825,849.30 = 382,604.60/x
  3. Step 3: Cross multiply
    551,878.40x = 825,849.30 × 382,604.60
  4. Step 4: Simplify right side
    551,878.40x = 315,973,741,086.78
  5. Step 5: Solve for x
    x = 315,973,741,086.78/551,878.40
  6. Step 6: Final answer
    x = 572,542.32

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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.