Home / 578,848.80-868,273.20-419,181.60

Finding the Fourth Proportional to 578,848.80, 868,273.20 and 419,181.60

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Solution

The fourth proportional to 578,848.80, 868,273.20 and 419,181.60 is: 628,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,848.80 : 868,273.20 = 419,181.60 : x
  2. Step 2: Convert to fraction form
    578,848.80/868,273.20 = 419,181.60/x
  3. Step 3: Cross multiply
    578,848.80x = 868,273.20 × 419,181.60
  4. Step 4: Simplify right side
    578,848.80x = 363,964,149,213.12
  5. Step 5: Solve for x
    x = 363,964,149,213.12/578,848.80
  6. Step 6: Final answer
    x = 628,772.40

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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.