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Finding the Fourth Proportional to 623,578.22, 860,771.96 and 408,732.13

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Solution

The fourth proportional to 623,578.22, 860,771.96 and 408,732.13 is: 564,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,578.22 : 860,771.96 = 408,732.13 : x
  2. Step 2: Convert to fraction form
    623,578.22/860,771.96 = 408,732.13/x
  3. Step 3: Cross multiply
    623,578.22x = 860,771.96 × 408,732.13
  4. Step 4: Simplify right side
    623,578.22x = 351,825,156,655.08
  5. Step 5: Solve for x
    x = 351,825,156,655.08/623,578.22
  6. Step 6: Final answer
    x = 564,203.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.