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Finding the Fourth Proportional to 555,664.72, 766,817.67 and 301,016.92

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Solution

The fourth proportional to 555,664.72, 766,817.67 and 301,016.92 is: 415,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,664.72 : 766,817.67 = 301,016.92 : x
  2. Step 2: Convert to fraction form
    555,664.72/766,817.67 = 301,016.92/x
  3. Step 3: Cross multiply
    555,664.72x = 766,817.67 × 301,016.92
  4. Step 4: Simplify right side
    555,664.72x = 230,825,093,224.98
  5. Step 5: Solve for x
    x = 230,825,093,224.98/555,664.72
  6. Step 6: Final answer
    x = 415,403.54

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1.5x scale

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.