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Finding the Fourth Proportional to 574,706.60, 862,059.90 and 219,732.20

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Solution

The fourth proportional to 574,706.60, 862,059.90 and 219,732.20 is: 329,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,706.60 : 862,059.90 = 219,732.20 : x
  2. Step 2: Convert to fraction form
    574,706.60/862,059.90 = 219,732.20/x
  3. Step 3: Cross multiply
    574,706.60x = 862,059.90 × 219,732.20
  4. Step 4: Simplify right side
    574,706.60x = 189,422,318,358.78
  5. Step 5: Solve for x
    x = 189,422,318,358.78/574,706.60
  6. Step 6: Final answer
    x = 329,598.30

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Double scale
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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.