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Finding the Fourth Proportional to 359,874.63, 539,689.10 and 259,737.39

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Solution

The fourth proportional to 359,874.63, 539,689.10 and 259,737.39 is: 389,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,874.63 : 539,689.10 = 259,737.39 : x
  2. Step 2: Convert to fraction form
    359,874.63/539,689.10 = 259,737.39/x
  3. Step 3: Cross multiply
    359,874.63x = 539,689.10 × 259,737.39
  4. Step 4: Simplify right side
    359,874.63x = 140,177,436,946.76
  5. Step 5: Solve for x
    x = 140,177,436,946.76/359,874.63
  6. Step 6: Final answer
    x = 389,517.42

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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.