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Finding the Fourth Proportional to 499,231.20, 748,846.80 and 357,513.60

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Solution

The fourth proportional to 499,231.20, 748,846.80 and 357,513.60 is: 536,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,231.20 : 748,846.80 = 357,513.60 : x
  2. Step 2: Convert to fraction form
    499,231.20/748,846.80 = 357,513.60/x
  3. Step 3: Cross multiply
    499,231.20x = 748,846.80 × 357,513.60
  4. Step 4: Simplify right side
    499,231.20x = 267,722,915,316.48
  5. Step 5: Solve for x
    x = 267,722,915,316.48/499,231.20
  6. Step 6: Final answer
    x = 536,270.40

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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.