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Finding the Fourth Proportional to 492,051.49, 679,027.93 and 277,260.73

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Solution

The fourth proportional to 492,051.49, 679,027.93 and 277,260.73 is: 382,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,051.49 : 679,027.93 = 277,260.73 : x
  2. Step 2: Convert to fraction form
    492,051.49/679,027.93 = 277,260.73/x
  3. Step 3: Cross multiply
    492,051.49x = 679,027.93 × 277,260.73
  4. Step 4: Simplify right side
    492,051.49x = 188,267,779,562.19
  5. Step 5: Solve for x
    x = 188,267,779,562.19/492,051.49
  6. Step 6: Final answer
    x = 382,618.05

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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.