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Finding the Fourth Proportional to 372,999.58, 558,658.16 and 261,179.01

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Solution

The fourth proportional to 372,999.58, 558,658.16 and 261,179.01 is: 391,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,999.58 : 558,658.16 = 261,179.01 : x
  2. Step 2: Convert to fraction form
    372,999.58/558,658.16 = 261,179.01/x
  3. Step 3: Cross multiply
    372,999.58x = 558,658.16 × 261,179.01
  4. Step 4: Simplify right side
    372,999.58x = 145,909,783,851.33
  5. Step 5: Solve for x
    x = 145,909,783,851.33/372,999.58
  6. Step 6: Final answer
    x = 391,179.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.