Home / 578,515.70-867,773.55-204,490.10

Finding the Fourth Proportional to 578,515.70, 867,773.55 and 204,490.10

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Solution

The fourth proportional to 578,515.70, 867,773.55 and 204,490.10 is: 306,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,515.70 : 867,773.55 = 204,490.10 : x
  2. Step 2: Convert to fraction form
    578,515.70/867,773.55 = 204,490.10/x
  3. Step 3: Cross multiply
    578,515.70x = 867,773.55 × 204,490.10
  4. Step 4: Simplify right side
    578,515.70x = 177,451,100,016.86
  5. Step 5: Solve for x
    x = 177,451,100,016.86/578,515.70
  6. Step 6: Final answer
    x = 306,735.15

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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.