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Finding the Fourth Proportional to 542,672.44, 748,887.96 and 300,992.02

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Solution

The fourth proportional to 542,672.44, 748,887.96 and 300,992.02 is: 415,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,672.44 : 748,887.96 = 300,992.02 : x
  2. Step 2: Convert to fraction form
    542,672.44/748,887.96 = 300,992.02/x
  3. Step 3: Cross multiply
    542,672.44x = 748,887.96 × 300,992.02
  4. Step 4: Simplify right side
    542,672.44x = 225,409,299,090.58
  5. Step 5: Solve for x
    x = 225,409,299,090.58/542,672.44
  6. Step 6: Final answer
    x = 415,368.98

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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.