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Finding the Fourth Proportional to 483,933.60, 725,900.40 and 306,640.80

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Solution

The fourth proportional to 483,933.60, 725,900.40 and 306,640.80 is: 459,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,933.60 : 725,900.40 = 306,640.80 : x
  2. Step 2: Convert to fraction form
    483,933.60/725,900.40 = 306,640.80/x
  3. Step 3: Cross multiply
    483,933.60x = 725,900.40 × 306,640.80
  4. Step 4: Simplify right side
    483,933.60x = 222,590,679,376.32
  5. Step 5: Solve for x
    x = 222,590,679,376.32/483,933.60
  6. Step 6: Final answer
    x = 459,961.20

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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.