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Finding the Fourth Proportional to 700,880.70, 967,215.22 and 378,590.81

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Solution

The fourth proportional to 700,880.70, 967,215.22 and 378,590.81 is: 522,455.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,880.70 : 967,215.22 = 378,590.81 : x
  2. Step 2: Convert to fraction form
    700,880.70/967,215.22 = 378,590.81/x
  3. Step 3: Cross multiply
    700,880.70x = 967,215.22 × 378,590.81
  4. Step 4: Simplify right side
    700,880.70x = 366,178,793,584.13
  5. Step 5: Solve for x
    x = 366,178,793,584.13/700,880.70
  6. Step 6: Final answer
    x = 522,455.24

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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.