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Finding the Fourth Proportional to 492,032.33, 679,011.44 and 274,234.97

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Solution

The fourth proportional to 492,032.33, 679,011.44 and 274,234.97 is: 378,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,032.33 : 679,011.44 = 274,234.97 : x
  2. Step 2: Convert to fraction form
    492,032.33/679,011.44 = 274,234.97/x
  3. Step 3: Cross multiply
    492,032.33x = 679,011.44 × 274,234.97
  4. Step 4: Simplify right side
    492,032.33x = 186,208,677,111.83
  5. Step 5: Solve for x
    x = 186,208,677,111.83/492,032.33
  6. Step 6: Final answer
    x = 378,448.06

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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.