Home / 578,840.40-868,260.60-325,861.20

Finding the Fourth Proportional to 578,840.40, 868,260.60 and 325,861.20

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Solution

The fourth proportional to 578,840.40, 868,260.60 and 325,861.20 is: 488,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,840.40 : 868,260.60 = 325,861.20 : x
  2. Step 2: Convert to fraction form
    578,840.40/868,260.60 = 325,861.20/x
  3. Step 3: Cross multiply
    578,840.40x = 868,260.60 × 325,861.20
  4. Step 4: Simplify right side
    578,840.40x = 282,932,441,028.72
  5. Step 5: Solve for x
    x = 282,932,441,028.72/578,840.40
  6. Step 6: Final answer
    x = 488,791.80

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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.