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Finding the Fourth Proportional to 528,211.60, 792,317.40 and 154,234.60

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Solution

The fourth proportional to 528,211.60, 792,317.40 and 154,234.60 is: 231,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,211.60 : 792,317.40 = 154,234.60 : x
  2. Step 2: Convert to fraction form
    528,211.60/792,317.40 = 154,234.60/x
  3. Step 3: Cross multiply
    528,211.60x = 792,317.40 × 154,234.60
  4. Step 4: Simplify right side
    528,211.60x = 122,202,757,262.04
  5. Step 5: Solve for x
    x = 122,202,757,262.04/528,211.60
  6. Step 6: Final answer
    x = 231,351.90

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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.