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Finding the Fourth Proportional to 700,881.06, 967,215.75 and 378,591.18

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Solution

The fourth proportional to 700,881.06, 967,215.75 and 378,591.18 is: 522,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,881.06 : 967,215.75 = 378,591.18 : x
  2. Step 2: Convert to fraction form
    700,881.06/967,215.75 = 378,591.18/x
  3. Step 3: Cross multiply
    700,881.06x = 967,215.75 × 378,591.18
  4. Step 4: Simplify right side
    700,881.06x = 366,179,352,107.09
  5. Step 5: Solve for x
    x = 366,179,352,107.09/700,881.06
  6. Step 6: Final answer
    x = 522,455.77

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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.