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Finding the Fourth Proportional to 372,999.47, 514,739.34 and 203,233.59

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Solution

The fourth proportional to 372,999.47, 514,739.34 and 203,233.59 is: 280,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,999.47 : 514,739.34 = 203,233.59 : x
  2. Step 2: Convert to fraction form
    372,999.47/514,739.34 = 203,233.59/x
  3. Step 3: Cross multiply
    372,999.47x = 514,739.34 × 203,233.59
  4. Step 4: Simplify right side
    372,999.47x = 104,612,323,982.43
  5. Step 5: Solve for x
    x = 104,612,323,982.43/372,999.47
  6. Step 6: Final answer
    x = 280,462.40

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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.