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Finding the Fourth Proportional to 394,805.02, 544,580.11 and 258,847.77

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Solution

The fourth proportional to 394,805.02, 544,580.11 and 258,847.77 is: 357,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,805.02 : 544,580.11 = 258,847.77 : x
  2. Step 2: Convert to fraction form
    394,805.02/544,580.11 = 258,847.77/x
  3. Step 3: Cross multiply
    394,805.02x = 544,580.11 × 258,847.77
  4. Step 4: Simplify right side
    394,805.02x = 140,963,347,059.86
  5. Step 5: Solve for x
    x = 140,963,347,059.86/394,805.02
  6. Step 6: Final answer
    x = 357,045.48

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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.