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Finding the Fourth Proportional to 394,340.60, 591,510.90 and 183,999.80

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Solution

The fourth proportional to 394,340.60, 591,510.90 and 183,999.80 is: 275,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,340.60 : 591,510.90 = 183,999.80 : x
  2. Step 2: Convert to fraction form
    394,340.60/591,510.90 = 183,999.80/x
  3. Step 3: Cross multiply
    394,340.60x = 591,510.90 × 183,999.80
  4. Step 4: Simplify right side
    394,340.60x = 108,837,887,297.82
  5. Step 5: Solve for x
    x = 108,837,887,297.82/394,340.60
  6. Step 6: Final answer
    x = 275,999.70

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Similar ratio
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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.