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Finding the Fourth Proportional to 528,099.70, 792,149.55 and 195,805.30

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Solution

The fourth proportional to 528,099.70, 792,149.55 and 195,805.30 is: 293,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,099.70 : 792,149.55 = 195,805.30 : x
  2. Step 2: Convert to fraction form
    528,099.70/792,149.55 = 195,805.30/x
  3. Step 3: Cross multiply
    528,099.70x = 792,149.55 × 195,805.30
  4. Step 4: Simplify right side
    528,099.70x = 155,107,080,282.62
  5. Step 5: Solve for x
    x = 155,107,080,282.62/528,099.70
  6. Step 6: Final answer
    x = 293,707.95

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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.