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Finding the Fourth Proportional to 481,886.80, 722,830.20 and 303,816.40

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Solution

The fourth proportional to 481,886.80, 722,830.20 and 303,816.40 is: 455,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,886.80 : 722,830.20 = 303,816.40 : x
  2. Step 2: Convert to fraction form
    481,886.80/722,830.20 = 303,816.40/x
  3. Step 3: Cross multiply
    481,886.80x = 722,830.20 × 303,816.40
  4. Step 4: Simplify right side
    481,886.80x = 219,607,669,175.28
  5. Step 5: Solve for x
    x = 219,607,669,175.28/481,886.80
  6. Step 6: Final answer
    x = 455,724.60

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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.