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Finding the Fourth Proportional to 704,735.45, 972,542.05 and 382,448.33

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Solution

The fourth proportional to 704,735.45, 972,542.05 and 382,448.33 is: 527,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,735.45 : 972,542.05 = 382,448.33 : x
  2. Step 2: Convert to fraction form
    704,735.45/972,542.05 = 382,448.33/x
  3. Step 3: Cross multiply
    704,735.45x = 972,542.05 × 382,448.33
  4. Step 4: Simplify right side
    704,735.45x = 371,947,082,877.28
  5. Step 5: Solve for x
    x = 371,947,082,877.28/704,735.45
  6. Step 6: Final answer
    x = 527,782.56

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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.