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Finding the Fourth Proportional to 573,616.11, 860,416.86 and 257,849.76

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Solution

The fourth proportional to 573,616.11, 860,416.86 and 257,849.76 is: 386,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,616.11 : 860,416.86 = 257,849.76 : x
  2. Step 2: Convert to fraction form
    573,616.11/860,416.86 = 257,849.76/x
  3. Step 3: Cross multiply
    573,616.11x = 860,416.86 × 257,849.76
  4. Step 4: Simplify right side
    573,616.11x = 221,858,280,850.95
  5. Step 5: Solve for x
    x = 221,858,280,850.95/573,616.11
  6. Step 6: Final answer
    x = 386,771.36

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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.