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Finding the Fourth Proportional to 553,680.20, 830,520.30 and 543,182.60

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Solution

The fourth proportional to 553,680.20, 830,520.30 and 543,182.60 is: 814,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,680.20 : 830,520.30 = 543,182.60 : x
  2. Step 2: Convert to fraction form
    553,680.20/830,520.30 = 543,182.60/x
  3. Step 3: Cross multiply
    553,680.20x = 830,520.30 × 543,182.60
  4. Step 4: Simplify right side
    553,680.20x = 451,124,175,906.78
  5. Step 5: Solve for x
    x = 451,124,175,906.78/553,680.20
  6. Step 6: Final answer
    x = 814,773.90

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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.