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Finding the Fourth Proportional to 528,092.70, 792,139.05 and 195,798.30

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Solution

The fourth proportional to 528,092.70, 792,139.05 and 195,798.30 is: 293,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,092.70 : 792,139.05 = 195,798.30 : x
  2. Step 2: Convert to fraction form
    528,092.70/792,139.05 = 195,798.30/x
  3. Step 3: Cross multiply
    528,092.70x = 792,139.05 × 195,798.30
  4. Step 4: Simplify right side
    528,092.70x = 155,099,479,353.62
  5. Step 5: Solve for x
    x = 155,099,479,353.62/528,092.70
  6. Step 6: Final answer
    x = 293,697.45

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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.