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Finding the Fourth Proportional to 704,626.44, 972,371.73 and 428,884.44

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Solution

The fourth proportional to 704,626.44, 972,371.73 and 428,884.44 is: 591,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,626.44 : 972,371.73 = 428,884.44 : x
  2. Step 2: Convert to fraction form
    704,626.44/972,371.73 = 428,884.44/x
  3. Step 3: Cross multiply
    704,626.44x = 972,371.73 × 428,884.44
  4. Step 4: Simplify right side
    704,626.44x = 417,035,104,892.88
  5. Step 5: Solve for x
    x = 417,035,104,892.88/704,626.44
  6. Step 6: Final answer
    x = 591,852.76

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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.