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Finding the Fourth Proportional to 523,326.80, 784,990.20 and 482,891.60

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Solution

The fourth proportional to 523,326.80, 784,990.20 and 482,891.60 is: 724,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,326.80 : 784,990.20 = 482,891.60 : x
  2. Step 2: Convert to fraction form
    523,326.80/784,990.20 = 482,891.60/x
  3. Step 3: Cross multiply
    523,326.80x = 784,990.20 × 482,891.60
  4. Step 4: Simplify right side
    523,326.80x = 379,065,173,662.32
  5. Step 5: Solve for x
    x = 379,065,173,662.32/523,326.80
  6. Step 6: Final answer
    x = 724,337.40

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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.