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Finding the Fourth Proportional to 704,732.45, 972,537.91 and 382,445.33

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Solution

The fourth proportional to 704,732.45, 972,537.91 and 382,445.33 is: 527,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,732.45 : 972,537.91 = 382,445.33 : x
  2. Step 2: Convert to fraction form
    704,732.45/972,537.91 = 382,445.33/x
  3. Step 3: Cross multiply
    704,732.45x = 972,537.91 × 382,445.33
  4. Step 4: Simplify right side
    704,732.45x = 371,942,576,108.66
  5. Step 5: Solve for x
    x = 371,942,576,108.66/704,732.45
  6. Step 6: Final answer
    x = 527,778.42

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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.