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Finding the Fourth Proportional to 528,349.29, 792,521.99 and 191,311.12

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Solution

The fourth proportional to 528,349.29, 792,521.99 and 191,311.12 is: 286,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,349.29 : 792,521.99 = 191,311.12 : x
  2. Step 2: Convert to fraction form
    528,349.29/792,521.99 = 191,311.12/x
  3. Step 3: Cross multiply
    528,349.29x = 792,521.99 × 191,311.12
  4. Step 4: Simplify right side
    528,349.29x = 151,618,267,311.09
  5. Step 5: Solve for x
    x = 151,618,267,311.09/528,349.29
  6. Step 6: Final answer
    x = 286,965.97

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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.