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Finding the Fourth Proportional to 700,915.80, 967,262.82 and 378,625.80

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Solution

The fourth proportional to 700,915.80, 967,262.82 and 378,625.80 is: 522,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,915.80 : 967,262.82 = 378,625.80 : x
  2. Step 2: Convert to fraction form
    700,915.80/967,262.82 = 378,625.80/x
  3. Step 3: Cross multiply
    700,915.80x = 967,262.82 × 378,625.80
  4. Step 4: Simplify right side
    700,915.80x = 366,230,659,032.76
  5. Step 5: Solve for x
    x = 366,230,659,032.76/700,915.80
  6. Step 6: Final answer
    x = 522,503.07

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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.