Home / 939,489.80-1,409,234.70-603,566.60

Finding the Fourth Proportional to 939,489.80, 1,409,234.70 and 603,566.60

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Solution

The fourth proportional to 939,489.80, 1,409,234.70 and 603,566.60 is: 905,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,489.80 : 1,409,234.70 = 603,566.60 : x
  2. Step 2: Convert to fraction form
    939,489.80/1,409,234.70 = 603,566.60/x
  3. Step 3: Cross multiply
    939,489.80x = 1,409,234.70 × 603,566.60
  4. Step 4: Simplify right side
    939,489.80x = 850,566,996,481.02
  5. Step 5: Solve for x
    x = 850,566,996,481.02/939,489.80
  6. Step 6: Final answer
    x = 905,349.90

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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.