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Finding the Fourth Proportional to 492,648.82, 679,797.61 and 277,776.07

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Solution

The fourth proportional to 492,648.82, 679,797.61 and 277,776.07 is: 383,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,648.82 : 679,797.61 = 277,776.07 : x
  2. Step 2: Convert to fraction form
    492,648.82/679,797.61 = 277,776.07/x
  3. Step 3: Cross multiply
    492,648.82x = 679,797.61 × 277,776.07
  4. Step 4: Simplify right side
    492,648.82x = 188,831,508,501.19
  5. Step 5: Solve for x
    x = 188,831,508,501.19/492,648.82
  6. Step 6: Final answer
    x = 383,298.41

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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.