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Finding the Fourth Proportional to 492,060.35, 679,045.71 and 277,203.80

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Solution

The fourth proportional to 492,060.35, 679,045.71 and 277,203.80 is: 382,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,060.35 : 679,045.71 = 277,203.80 : x
  2. Step 2: Convert to fraction form
    492,060.35/679,045.71 = 277,203.80/x
  3. Step 3: Cross multiply
    492,060.35x = 679,045.71 × 277,203.80
  4. Step 4: Simplify right side
    492,060.35x = 188,234,047,790.47
  5. Step 5: Solve for x
    x = 188,234,047,790.47/492,060.35
  6. Step 6: Final answer
    x = 382,542.61

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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.