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Finding the Fourth Proportional to 492,554.64, 679,731.48 and 277,651.92

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Solution

The fourth proportional to 492,554.64, 679,731.48 and 277,651.92 is: 383,163.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,554.64 : 679,731.48 = 277,651.92 : x
  2. Step 2: Convert to fraction form
    492,554.64/679,731.48 = 277,651.92/x
  3. Step 3: Cross multiply
    492,554.64x = 679,731.48 × 277,651.92
  4. Step 4: Simplify right side
    492,554.64x = 188,728,750,506.44
  5. Step 5: Solve for x
    x = 188,728,750,506.44/492,554.64
  6. Step 6: Final answer
    x = 383,163.08

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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.