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Finding the Fourth Proportional to 492,592.98, 679,779.27 and 277,732.56

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Solution

The fourth proportional to 492,592.98, 679,779.27 and 277,732.56 is: 383,271.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,592.98 : 679,779.27 = 277,732.56 : x
  2. Step 2: Convert to fraction form
    492,592.98/679,779.27 = 277,732.56/x
  3. Step 3: Cross multiply
    492,592.98x = 679,779.27 × 277,732.56
  4. Step 4: Simplify right side
    492,592.98x = 188,796,836,892.03
  5. Step 5: Solve for x
    x = 188,796,836,892.03/492,592.98
  6. Step 6: Final answer
    x = 383,271.47

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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.