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Finding the Fourth Proportional to 700,907.89, 967,252.12 and 378,617.92

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Solution

The fourth proportional to 700,907.89, 967,252.12 and 378,617.92 is: 522,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,907.89 : 967,252.12 = 378,617.92 : x
  2. Step 2: Convert to fraction form
    700,907.89/967,252.12 = 378,617.92/x
  3. Step 3: Cross multiply
    700,907.89x = 967,252.12 × 378,617.92
  4. Step 4: Simplify right side
    700,907.89x = 366,218,985,789.99
  5. Step 5: Solve for x
    x = 366,218,985,789.99/700,907.89
  6. Step 6: Final answer
    x = 522,492.31

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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.