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Finding the Fourth Proportional to 700,854.28, 967,179.29 and 378,564.37

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Solution

The fourth proportional to 700,854.28, 967,179.29 and 378,564.37 is: 522,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,854.28 : 967,179.29 = 378,564.37 : x
  2. Step 2: Convert to fraction form
    700,854.28/967,179.29 = 378,564.37/x
  3. Step 3: Cross multiply
    700,854.28x = 967,179.29 × 378,564.37
  4. Step 4: Simplify right side
    700,854.28x = 366,139,617,649.49
  5. Step 5: Solve for x
    x = 366,139,617,649.49/700,854.28
  6. Step 6: Final answer
    x = 522,419.04

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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.