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Finding the Fourth Proportional to 616,728.40, 925,092.60 and 217,819.60

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Solution

The fourth proportional to 616,728.40, 925,092.60 and 217,819.60 is: 326,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,728.40 : 925,092.60 = 217,819.60 : x
  2. Step 2: Convert to fraction form
    616,728.40/925,092.60 = 217,819.60/x
  3. Step 3: Cross multiply
    616,728.40x = 925,092.60 × 217,819.60
  4. Step 4: Simplify right side
    616,728.40x = 201,503,300,094.96
  5. Step 5: Solve for x
    x = 201,503,300,094.96/616,728.40
  6. Step 6: Final answer
    x = 326,729.40

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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.