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Finding the Fourth Proportional to 700,907.52, 967,251.80 and 378,617.52

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Solution

The fourth proportional to 700,907.52, 967,251.80 and 378,617.52 is: 522,491.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,907.52 : 967,251.80 = 378,617.52 : x
  2. Step 2: Convert to fraction form
    700,907.52/967,251.80 = 378,617.52/x
  3. Step 3: Cross multiply
    700,907.52x = 967,251.80 × 378,617.52
  4. Step 4: Simplify right side
    700,907.52x = 366,218,477,731.54
  5. Step 5: Solve for x
    x = 366,218,477,731.54/700,907.52
  6. Step 6: Final answer
    x = 522,491.87

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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.