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Finding the Fourth Proportional to 545,360.06, 818,081.09 and 145,991.98

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Solution

The fourth proportional to 545,360.06, 818,081.09 and 145,991.98 is: 218,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,360.06 : 818,081.09 = 145,991.98 : x
  2. Step 2: Convert to fraction form
    545,360.06/818,081.09 = 145,991.98/x
  3. Step 3: Cross multiply
    545,360.06x = 818,081.09 × 145,991.98
  4. Step 4: Simplify right side
    545,360.06x = 119,433,278,129.66
  5. Step 5: Solve for x
    x = 119,433,278,129.66/545,360.06
  6. Step 6: Final answer
    x = 218,998.95

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1.5x scale

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.