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Finding the Fourth Proportional to 658,483.20, 987,724.80 and 237,772.80

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Solution

The fourth proportional to 658,483.20, 987,724.80 and 237,772.80 is: 356,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,483.20 : 987,724.80 = 237,772.80 : x
  2. Step 2: Convert to fraction form
    658,483.20/987,724.80 = 237,772.80/x
  3. Step 3: Cross multiply
    658,483.20x = 987,724.80 × 237,772.80
  4. Step 4: Simplify right side
    658,483.20x = 234,854,091,325.44
  5. Step 5: Solve for x
    x = 234,854,091,325.44/658,483.20
  6. Step 6: Final answer
    x = 356,659.20

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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.