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Finding the Fourth Proportional to 544,703.28, 751,690.50 and 306,239.28

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Solution

The fourth proportional to 544,703.28, 751,690.50 and 306,239.28 is: 422,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,703.28 : 751,690.50 = 306,239.28 : x
  2. Step 2: Convert to fraction form
    544,703.28/751,690.50 = 306,239.28/x
  3. Step 3: Cross multiply
    544,703.28x = 751,690.50 × 306,239.28
  4. Step 4: Simplify right side
    544,703.28x = 230,197,157,502.84
  5. Step 5: Solve for x
    x = 230,197,157,502.84/544,703.28
  6. Step 6: Final answer
    x = 422,610.19

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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.