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Finding the Fourth Proportional to 528,099.70, 792,149.55 and 173,149.60

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Solution

The fourth proportional to 528,099.70, 792,149.55 and 173,149.60 is: 259,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,099.70 : 792,149.55 = 173,149.60 : x
  2. Step 2: Convert to fraction form
    528,099.70/792,149.55 = 173,149.60/x
  3. Step 3: Cross multiply
    528,099.70x = 792,149.55 × 173,149.60
  4. Step 4: Simplify right side
    528,099.70x = 137,160,377,722.68
  5. Step 5: Solve for x
    x = 137,160,377,722.68/528,099.70
  6. Step 6: Final answer
    x = 259,724.40

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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.