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Finding the Fourth Proportional to 483,620.60, 724,556.10 and 413,636.60

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Solution

The fourth proportional to 483,620.60, 724,556.10 and 413,636.60 is: 619,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,620.60 : 724,556.10 = 413,636.60 : x
  2. Step 2: Convert to fraction form
    483,620.60/724,556.10 = 413,636.60/x
  3. Step 3: Cross multiply
    483,620.60x = 724,556.10 × 413,636.60
  4. Step 4: Simplify right side
    483,620.60x = 299,702,921,713.26
  5. Step 5: Solve for x
    x = 299,702,921,713.26/483,620.60
  6. Step 6: Final answer
    x = 619,706.69

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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.