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Finding the Fourth Proportional to 408,042.90, 571,850.55 and 408,042.90

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Solution

The fourth proportional to 408,042.90, 571,850.55 and 408,042.90 is: 571,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,042.90 : 571,850.55 = 408,042.90 : x
  2. Step 2: Convert to fraction form
    408,042.90/571,850.55 = 408,042.90/x
  3. Step 3: Cross multiply
    408,042.90x = 571,850.55 × 408,042.90
  4. Step 4: Simplify right side
    408,042.90x = 233,339,556,788.60
  5. Step 5: Solve for x
    x = 233,339,556,788.60/408,042.90
  6. Step 6: Final answer
    x = 571,850.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.