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Finding the Fourth Proportional to 700,878.52, 967,212.75 and 378,588.62

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Solution

The fourth proportional to 700,878.52, 967,212.75 and 378,588.62 is: 522,452.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,878.52 : 967,212.75 = 378,588.62 : x
  2. Step 2: Convert to fraction form
    700,878.52/967,212.75 = 378,588.62/x
  3. Step 3: Cross multiply
    700,878.52x = 967,212.75 × 378,588.62
  4. Step 4: Simplify right side
    700,878.52x = 366,175,740,268.91
  5. Step 5: Solve for x
    x = 366,175,740,268.91/700,878.52
  6. Step 6: Final answer
    x = 522,452.51

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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.